Alternative Cartridges

Alternative Cartridges For Stripped Upper and Multi-Caliber Receivers

One of the best things about owning an AR-15 is that it supports multiple cartridges without significant changes. Sometimes all you have to do is change the upper receiver and magazines.

The upper receiver consists of a bolt carrier group, the receiver, and the barrel. This means that you can change the barrel length, caliber, and general functionality method of the firearm by changing the upper receiver only.

Over the years, the AR-15 has seen some innovations. New cartridges compatible with the platform characterizes these innovations. If you’re considering AR cartridges, Matrix Arms can help you get a new experience with your rifle.


How to Choose an Alternative AR-15 Cartridge/Caliber

When the AR platform came into existence nearly a century ago, you could only choose your caliber between 5.56 and 2.23, but several changes have been made. This is partly because of the rise of the platform as one of the most popular in the United States and other parts of the world.

Although multiple alternative AR calibers give you an array of cartridges, choosing the best for your rifle can be daunting. For many cartridges, you may need to get a new upper for your rifle. So selecting an AR cartridge requires the following considerations:


Flexibility is essential when choosing any cartridges. If your rifle is for multipurpose functionality, it must have versatile cartridges to adapt to your shooting needs. For instance, if your rifle serves for your defense, hunting, and long-range shooting, having flexible cartridges such as the 6mm ARC or 6.5 Grendel may serve your purpose efficiently.

The flexibility feature sounds best in theory; however, pulling it off is another thing. Having professional guidance can help you choose the most versatile cartridges.

Availability and Cost

The market’s most available and cheapest product is often associated with low quality. But for AR cartridges, it’s a different matter — the most available and affordable alternative cartridges can be the best in the market. The cheapest rounds are often the most vastly used and the best. So it would be best to consider demand and supply before deciding on cartridges.

Some AR-15 Alternative Cartridges

Instead of relying on the standard 5.56 round, there are multiple options for your AR-15, including:

  • 6.5 Grendel: The cartridge was first introduced at Blackwater Training Facility in North Carolina in 2004. The aim was to present an effective 200-400 yards AR-15 magazine-length cartridge for the AR-15 that would overrun the conventional 5.56 mm performance. The 6.5 Grendel is an effective AR cartridge for hunting in 300 yards.
  • For Pistol Calibers: 9mm ACP and 10mm: Pistol Caliber Carbines are a must-have for pistol lovers. Although some people see it odd to make a pistol bigger, an APC can be ideal for training or home defense. Additionally, a 9mm is available and less costly than the 5.56. Multiple options are available if you consider changing your AR into an APC.
  • .50 Beowulf: If you’re a fan of the biggest cartridges, this is your alternative AR caliber. The .50 Beowulf is currently the biggest cartridge for the AR-15 platform. Designed to stop vehicles, this caliber is relatively heavy, and its ballistics are nearly similar to the traditional .45-70 government rounds.
  • .22 LR: If you learned shooting with the .22 LR, you’re not alone. This is an American cartridge — and probably older than Coca-Cola. So, with conversion kits and uppers, you can easily get it.
  • 7.62x39mm: This is often recognized by its Russian origin. Unfortunately, earlier cartridges were rough to work with due to readability issues. Luckily, the recent cartridges don’t have such problems.

Get the Best High-Precision CNC Firearms at Matrix Arms

A firearm is important for your defense, hunting, or shooting endeavors. However, to have the best shooting experience, you need a gun that suits your needs.

Firearm experts at Matrix Arms can help you understand which rifles fit your needs. They can also advise you on AR cartridges that fit your firearm best.

Contact us today for all your firearms needs.


rifle bullets

Understanding AR-15 Calibers

Matrix Arms would like to preface this blog post by saying we understand that we know the term AR-15 stands for “Armalite” and is frequently used to describe rifles similar in design to the Colt AR-15 design. For purposes of this article, we will use the term AR-15 to reference the most popular semi-automatic rifles in the country, which are modeled after the Armalite and original Colt AR-15.

With that being said, how many Ar-15s are in the US? Approximately 20 million. They are frequently used in competitions and target shooting nationwide. AR-15s can be considered the Swiss army knife of firearms, suitable for range shooting, small to medium game hunting, and personal defense. Here are some of the factors to consider depending on your needs.

Factors to Consider When Buying AR-15 Calibers

An AR-15 is commonly used for competition and target shooting in national matches. Some find AR-15s suitable for range shooting, small to medium-game hunting, and defense. Here are some factors to consider when looking at the best multi-caliber lower receivers, depending on your needs.

AR-15 Caliber vs. Stopping Power

A cartridge’s stopping power depends on caliber, distance, the projectile’s kinetic energy, size, shape, weight, and shot placement. All these factors determine the stopping power of each caliber of ammunition and may change depending on certain variables.

For example; Joe Biden states that a 9mm Caliber bullet will “blow the lungs out” of humans when fired upon, which many experts (including a member of a U.S Marshal Fugitive Recovery Taskforce) feel that “that’s not even in the realm of possibility.” More mass, more speed, generally more deadly.

AR-15 Caliber Weight and Velocity

The weight of a bullet Certainly affects how the bullet performs, but the relationship between weight and velocity may not be what you think. Lighter bullets must travel faster to achieve the same kinetic energy as heavier bullets. With lighter bullets, you feel less recoil and improve accuracy due to the projectile rotating faster as it moves.

Heavier Bullets are more difficult to stabilize at slower speeds and require more charge (gunpowder) to move the increased mass at the same speed as a lighter projectile, increasing recoil. Different Calibers can perform differently with various barrel lengths. The Matrix Arms Multi-caliber AR-15 lowers are perfect for anyone looking to shoot different calibers, uppers, and barrel lengths, all on the same reliable AR-15 platform.

AR-15 Caliber Flexibility

The Matrix Arms Multi-caliber lower receiver brings a high level of flexibility with the ability to shoot almost any caliber of ammunition that will fit into the mag-well and stay compliant with all of America’s communist gun laws at the same time!

AR-15 Calibers Availability

Feeding a gun is almost like feeding yourself. Some of us prefer to feast on non-GMO vegan delicacies, while the rest of us not living in California may choose to slam Whoppers and Bud lights down our food chutes. Americans love choices, and the Matrix Arms multi-caliber lower receiver offers the ability for customers to have it their way! With multiple Caliber options to select from, you will have a better chance of finding the brand and caliber of ammo that works best with your AR-15. Be sure to check ammo availability before you invest in different caliber upper receivers.

5 Best AR-15 Ammo Alternatives

AR-15 stands for "Armalite

There are many Ammo alternatives when it comes to AR-15s. the Matrix Arms Multi-Caliber Lower receiver is compatible with the following calibers: .223 Remington, .556 NATO, 6.5 Grendel, 6.8 SPC, 300 AAC blackout, 10mm, 7.62×39, 5.45×39, 50 Beowulf, .458 Socom,

1..300 AAC Blackout

The .300 Blackout offers many projectile options. It burns full potential in a 9-inch barrel and cycles supersonic and subsonic ammo. Shorter barrels paired with suppressors can be a great choice for maneuvering in tight spaces such as buildings making it a great option for home defense.

2. 6.8 SPC

The 6.8 SPC is a rimless intermediate rifle cartridge, initially aimed to replace the 5.56 for military use in an attempt to create a more lethal cartridge. The replacement failed. But the 6.8 SPC is an excellent alternative to the 5.56. Some call the 6.8 SPC a “6.8 mm Remington Special Purpose Cartridge”.

3. 6.5 Grendel
The 6.5 Grendel was originally designed to be a lower recoil- higher precision cartridge compared to its 7.62×51 sibling. It can perform more accurately at longer distances and with less recoil. It also carries more kinetic energy and better armor-piercing penetration at 1,100 yards.

4. .50 Beowulf
This cartridge is designed to increase lethality at short to medium distances compared to the .556 NATO. It is specially designed and produced under the control of Alexander Arms and Delta Firearms. This cartridge is typically used for tactical operations but has recently increased in popularity among hunters and recreational shooters.

5. .458 SOCOM
Like the .50 Beowulf, the .458 Socom is best suited to close to medium-range tactical operations that benefit from suppressed shooting. The cartridge can carry heavy projectiles for long distances.

Get AR-15 Calibers and Accessories at Matrix Arms

Are you considering maximizing your AR-15’s power, potential, and style? Get the best selection in Matrix Arms. Contact us today for more information.


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The Best Shooting Stances for Pistols
Blog Handgun

The Best Shooting Stances for Pistols

The success of anything relies heavily on the foundation you place — a solid footing in construction guarantees a strong and lasting structure. The same goes with shooting stance. A solid stance in shooting is the foundation of accurate shooting. Likewise, a stable shooting stance allows you to measure the precise degree of sight alignment.

Nonetheless, there is no one-size-fits-all shooting stance for all pistol shooters. Your best stance depends on several factors, including height, build, and shooting experience. But, you need professional training to determine what stance fits you best. At Matrix Arms, we can help you choose the best pistol to improve your shooting precision.

Read on to learn different shooting stances you can use to improve your pistol shooting accuracy.

How Do I Establish My Best Shooting Stance for Pistol?

Different shooting stances are used by pistol shooters — there is not one perfect shooting stance for all pistol shooters. But, there are some general rules you can follow to find the best shooting stance for you:

Body Position

Your feet should be shoulder-width apart, with your weight evenly distributed. Your strong hand should grip the pistol firmly, with your finger off the trigger and resting on the frame. Your other hand should support the pistol, with the heel of your hand resting on the frame and your fingers wrapped around the front of the grip.

In addition, Your arms should be extended but not locked, and your elbows should be slightly bent. You should look down at the sights with your head positioned so that your dominant eye is in line with the sights.


Practice is the best way to find a shooting stance that works for you. Try different positions and see how they feel. Pay attention to your accuracy and comfort level. With practice, you will develop a stance that is natural and comfortable for you, that helps you to shoot accurately. Here are the three shooting stances you can learn:

Isosceles Shooting Stance

This stance is named after the isosceles triangle. The two sides represent your arms, while the triangle’s base is the chest. An effective isosceles stance involves feet shoulder-width apart with toes pointing at the target. You can lean forward and bend the knees slightly for stability.

Power Point Stance

This is a one-handed shooting stance that can deliver quick close-range accurate fire. While exercising this stance, you place your strong foot 15 to 20 inches forward on bent knees while pushing the shoulders into the pistol. This stance allows you to keep the other hand out of the way and be ready to use it as a defense tool. It would be best if you tucked it tightly at the center of your chest. A notable advantage of this stance is that it allows you minimal exposure and enables you to hold a flashlight or open a door.

Weaver Stance

This stance is credited to a Los Angeles County Deputy Sheriff, Jack Weaver. This shooting stance places your weight and positions your support foot 8 to 10 inches in front of the dominant foot. You should place your dominant side foot at a 45-degree angle facing outward.

The Weaver stance involves a push-pull grip and bent elbows. You should bend your support arm elbow downward at a 45-degree angle and pull the gun towards your body. In other words, your strong hand pushes outward while the support hand pulls the gun toward your body.

Discover Your Best Shooting Stance with Matrix Arms

Everyone has a right to defend themselves and their loved ones. Learning the best shooting stance for a pistol is one step toward gaining confidence in using guns. In addition, getting a handgun that fits you best is essential for your shooting.

At Matrix Arms, we don’t just make guns for profit. We have the most innovative and reliable firearms worldwide. Our mission statement focuses on innovation, perfection, and precision in giving all our customers the shooting experience they deserve. When you master proper grip and stance, having as much as 80% lower muzzle flip is not uncommon!

Contact us to get a handgun that enhances your shooting experience.


mx19 wood 4

A Look at the New SIG Sauer NGSW-R MCX Spear .277 Fury

Are you shopping for top firearms? Look no further! The New SIG Sauer MCX spear is the ultimate rifle for you. Recently launched, this is the real deal and one of the top world firearms.

The MCX spear comes loaded with different factors and working resolutions. The MCX-Spear delivers more power, accuracy, and distance. Besides this, the MCX spear has significantly advanced beyond the current M4 service.

SIG MCX is a rare opportunity for consumers to own a piece of history. MCX is the only rifle submission to the program designed and engineered in the United States. Also, the MCX spear comes as an adaptable, multi-caliber rifle.

Above all, the MCX comes with a six-position folding stock, folding bolt catch, ambidextrous fire control, and an ambidextrous magazine release.

The MCX spear is a bang, and the reasons are apparent. It has a two-stage match trigger, lightened free-float M-LOK handguard, a two adjustable gas pistol, and a full–length rail. At Matrix Arms, we ensure high-quality firearms to match customers’ specifications.


SIG MCX-SPEAR: Own a Piece of New U.S Military Via Civilian-legal version of the NGSW

The MCX earned a coveted reputation thanks to its enhanced accuracy, modularity, and reliability. It is sought for military service SIG submission to the

U.S; NGSW is based on the MCX platform introduced commercially on Ammos and guns in 2015.


SIG Sauer NGSW-R MCX Spear Overview

MCX SPEAR is a family of firearms and the first rifle to feed the .277 and can provide a 51mm case length.

SIG MCX SPEAR is produced in semi-automatic(civilian version) and selective fire models (military version), available in carbine, rifle, pistol configurations, and short-barreled rifles(SBR), and is a favorite among many firearm enthusiasts.

  • MCX spear comes with SIG Sauer SLX Suppressor featuring the new Clutch-LOK 00 mounting system that is easy to use. Also, it has an internal multi-flow path within the suppressor. Moreover, it allows gasses to exhaust faster than the traditional baffle suppressors.
  • The MCX-SPEAR is semi-automatic and chambered in 277 SIG FURY.

SIG USA designed the SIG MCX rifle. It is a particular edition variant of the MCX that includes an SLX suppressor.


SIG Sauer MCX Spear Specifications

The SIG Sauer is a standard Gas piston-driven AR10-sized rifle and does not rely on a spring system and traditional buffer tube. Thus, allowing the buttstock to be folded.

As we are all aware, the size of a firearm depends wholly on the size of ammunition it shoots. The ammo is 6.8*51mm, and its new shell has a hybrid metallic case that can withstand higher pressures.


SIG FURY Ammunition

Before you purchase SIG FURY, you must understand the critical parts of ammunition and its features as follows.

  • The MCX-SPEAR has been developed with direct input from U.S warfighters to provide more distance power and accuracy, thus replacing the current M4 rifle platform.
  • The MCX-SPEAR is a multi-caliber rifle and is adaptable 277 SIG,7.62 NATO, and 6.5 Creedmoor, thus featuring rear and side non-reciprocating charging handles.
  • The 277 SIG Fury is one of the most technically advanced leaps in small arms ammunition. Where it turns your immediate rifle platform into one with magnum performance without length or weight added.
  • 277 SIG FURY ammunition is the commercial variant of the military 6.8 x 51 cartridge available in the hybrid case
  • A huge benefit of the hybrid case technology is that the case is 20% lighter in weight for a loaded cartridge than a standard brass-cased cartridge, while also being capable of withstanding a higher maximum chamber pressure.

Interestingly, the first commercial rifle to feed the .277 is the MCX-SPEAR.


Check out Matrix Arms’ Inventory!

We carry hundreds of different types of firearms and accessories. Whether you’re looking to upgrade your existing gun collection or start from scratch, Matrix Arms has everything you could possibly want in one place.

When you shop at Matrix Arms, you get access to 58,000 sq ft. of our inventory in New Hampshire. We’re confident we can find you something unique. We offer the best high-performance firearms at a fair price.

Matrix Arms will cater to all your firearm needs. Whether you’re looking for a specific type of firearm or want to see what else we have in stock, browse our inventory.

Follow us on Instagram and keep up with our latest release, the MX 19 handgun! Contact us if you have any questions.

detailed photo of people shooting guns

AR-15 vs M16 – What’s The Difference?

The AR-15 is a semi-automatic rifle mostly open to civilian ownership. Its military version is the M16. While AR-15 and M16 are innovative and reliable rifles with the same 30 rounds magazine capacity, there are differences.

The following write-up jumps right into the heart of the AR-15 versus M16 discussion for insights to help choose between the two.

Matrix Arms is a CNC firearm manufacturer that believes in the right and freedom of people to defend themselves. We’re not only about stocking the most reliable and innovative firearms, but we also believe in values such as honesty and integrity.

AR-15: History and Designation

The AR-15 design is credited to Eugene Stoner and Armalite, which was meant for the United States Military. However, they sold the design to Colt in 1959 based on the high cost of manufacturing machine guns (a decision they probably regretted).

Eugene Stoner and Armalite also sold away the right to the name AR-15 and AR-10.

Fast forward to today, the AR-15 is one of the most popular firearms in the US, with an estimated more than ten million units owned by civilians. The American Rifle, a name it adopted, is available in an assortment of variations and platforms to serve the needs of every individual.

M16: Development from the AR-15

The M16 came a decade after the AR-15 and was based on its design (AR-15). It started shipping to Vietnam in 1964.

The rifle started off to a rough start, with issues related to the unchromed chamber, but it cemented its status as one of the most iconic military rifles in history.

The M16 has been going through changes to accommodate the various combat needs of our military. The 1997 M16 adaptation is more suited for the combat environment because of the ability to mount multiple accessories. The only thing that has persisted is the 20-inch barrel.

AR-15 or M16?

The AR-15 versus M16 debate often chokes with disinformation depending on intentions or beliefs.

Some refer to the AR-15 as semi-auto and its offspring, the M16, as full-auto. While that may be true to some extent, it doesn’t denote inferiority.

The original AR-15 was full-auto. The current civilian unit only misses a third trigger pinhole to prevent an auto-sear acceptance, which is not required. With the third hole drilled into it, the AR15 ceases to be a semi-auto, but for the sake of the law, we don’t want that, do we?

AR-15 Advantages:

  • Available: in every AR-15 vs. M16 discussion, the issue of availability often crops up, and the AR-15 rifle always takes the day.
  • Affordable: owning the AR-15 will not cost an arm and a leg.
  • Effective for battles: the AR-15 is also as effective as the M16 minus the sticker shocker and the military tag.

M16 Advantages

  • Full auto: as a military issue, the rifle accurately defines a machine gun

So Which is Right For Me? 

If the current state law allows, a civilian can own an M16, but it’ll take them back several tens of thousands of dollars. The AR-15, on the other hand, won’t tie you down with legality issues and whether you have enough to invest in a piece or Matrix Arms AR-15 parts (at least it’s not as expensive as an M16).

Choose Your AR-15 at Matrix Arms

There are several takeaways from the AR15 vs. M16 debate. AR-15 was the first through the production line and has survived this long because of its reliability and efficiency. The AR-15 is relatively inexpensive and primarily legal in the majority of the states in the US.

At Matrix Arms, we save our customers money with the best AR-15 parts to create a semi-auto rifle that holds a candle to any M16. We believe in innovation, precision, and perfection regarding rifles. Check out our stock here.


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How to Pick the Right Ammo for Your Glock™

If you’re reading this, then we probably don’t have to tell you that the Glock™ is one of the world’s top firearms and an essential weapon for military and law enforcement agencies around the globe. The Glock™ has plenty of factors working in its favor, boasting unmatched reliability, a lightweight design, and an above-average magazine capacity.

But like any firearm, a Glock™ can only perform to its highest potential when it is properly loaded with the right ammunition. So, what ammo does a Glock™ use? You need to know exactly which Glock™ handgun you have to answer that question.

We’ve put together a handy guide to choosing the right ammo for Glock™ handguns, covering the most popular models made by the manufacturer.

Essential Ammunition Terms

Before you start browsing Glock™ ammo for sale, you should have a solid understanding of how bullets are measured. This means learning about the most important parts of ammunition and the purpose each serves:

  • Cartridge: The cartridge includes the bullet, casing, primer, and powder, which are all necessary for the propulsion of the bullet.
    • The bullet is a metal projectile, which will be shot out of the mouth of a firing cartridge.
    • The casing is a tube, typically made from brass, which contains and holds together the entire cartridge.
    • The primer is a special cap located in the head of the cartridge, which ignites the powder when struck by the firing pin.
    • The powder, or gunpowder, will explode when the gun is firing, generating the energy to propel the bullet forward.

As you look for bullets for Glock™ handguns, you can expect to see these key terms referenced regularly. Now that you’re familiar with what each one means, it’s much easier to be a confident and informed shopper.

Types of Ammunition

There are many different ammo types out there, with a handful that tend to be the most common:

  • .22 LR: Typically used for training and sports shooting, this rimfire cartridge is rarely paired with Glock™s.
  • 9mm: The most common caliber and widely-used ammo out there, the 9mm is often used as Glock™ ammo.
  • .380 ACP: Referred to as a “three-eighty,” this is usually seen in smaller handguns.
  • .40: Larger and slower than a 9mm, this ammo will generate more recoil.
  • .45 Auto: Even larger than a .40 caliber bullet, this ammo type increases the recoil factor even more.

Of these common types of ammo, many are frequently recommended for Glock™ handguns. A few types are not on this list because they are far rarer, though they may occasionally be suggested for use with a specific Glock™.

What Ammo Does a Glock™ Use?

The right ammo for a Glock™ will depend on the specific handgun’s identity. In other words, you’re going to need to learn a little bit about which Glock™ you have to know what ammo to use with it.

Some of the most popular handguns by Glock™ – and the ammo they use – include:

  • Glock™ 17: The well-known Glock™ 17 is one of Glock™’s smaller handguns. The correct ammo for a Glock™ 17 is 9mm, sometimes marked 9×19.
  • Glock™ 19: Considered the most popular Glock™ handgun, the Glock™ 19 uses 9mm ammo.
  • Glock™ 20: With a little extra power, the Glock™ 20 requires 10mm auto ammunition and isn’t seen quite as often.
  • Glock™ 21: This high-powered handgun takes .45 Auto ammo.
  • Glock™ 22: A standard-issue Glock™ 22 will be paired with .40 caliber ammunition.
  • Glock™ 23: Slightly more compact than the Glock™ 22, the 23 similarly uses .40 caliber ammo.
  • Glock™ 26: This impressively compact handgun (one of the most compact on the market today) requires 9mm ammo.

Do you have a Glock™ that’s not on this list? Don’t make the mistake of simply guessing which ammo it requires. No matter what model you’re working with, the correct ammunition is a must.

The good news is that it’s pretty difficult to get the wrong ammo to fit in and fire from a magazine or handgun it’s not compatible with. Generally, you’ll realize you’ve made an error when the ammo doesn’t even properly fit. That being said, it can be possible – through pretty unlikely – that you do fire the wrong bullets from a handgun. In that situation, the best-case scenario is faulty performance, while the worst-case scenario is a damaged firearm or even an injury to yourself.

So, above all, make sure you choose the right ammo every single time.

Get Glock™ Parts and Accessories from Matrix Arms in Claremont, NH

Are you ready to maximize your Glock™’s power, potential, and style? Check out our outstanding selection at Matrix Arms of Glock™ aftermarket parts, accessories, and everything else you need to customize your handgun.

Get more information about Glock™ ammo and how to select the right bullets when you contact Matrix Arms today.

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Most Powerful Handguns

Originally, handguns were designed to be an easily portable means for self-defense in close-quarters combat – at the time, power wasn’t necessarily a priority. But fast-forward to modern-day handguns, and you can find more than a few high-powered options to choose from.

Although many gun owners still consider the handgun to be the go-to concealed-carry firearm for self-defense purposes, handguns have also become well-known as an exceptional weapon for hunting large game. So, it only makes sense that the world’s top gunmakers are leveling up the amount of power that is possible in a civilian handgun.

How the Power of a Handgun Can Be Measured

Before we introduce our picks for the most powerful civilian handguns on the market, let’s clarify a very important point: what’s the best way to measure how much power a handgun has?

You’ll often see a handgun’s muzzle velocity and energy used as the benchmark for power, but the pressure (pounds per square inch) generated in the barrel chamber is actually one of the most accurate determinants. 

That doesn’t mean that energy and muzzle velocity don’t come in handy when you’re shopping for the best handgun to add to your collection. It’s just useful to be aware of the true measure of an exceptionally formidable weapon.

The Most Powerful Handguns Available Today

1. Smith & Wesson Model 500, 500 S&W Magnum

Since its 2003 debut, the Smith & Wesson Model 500 has been among the best handguns for sale today. Equal parts reliable, accurate, and durable, the Model 500 is a single-action/double-action pistol. Thanks to its unparalleled accuracy, it’s an outstanding choice for both hunting and self-defense applications alike, and investment delivers impressive value.

2. Smith & Wesson Model 29, .44 Remington Magnum

Of course, the .44 Magnum is a must on any list of the most powerful handguns. It can drive a 304-grain bullet up to 1325 fps, producing 1188 four-pounds of energy – despite only totaling 36,000 psi. Granted, this is often categorized among the more divisive handgun options, mostly because a fair number of people don’t particularly enjoy shooting a full-power .44 Magnum. But even so, it’s a hard-hitting handgun that can take down a fully-grown African buffalo, so it’s not surprising there are plenty of dedicated fans.

3. Magnum Research BFR, .45/70 Government

Technically, the .45/70 Government isn’t considered a revolver cartridge, and the manufacturer didn’t intend it to be. Instead, it’s really a rifle cartridge in an extremely large revolver. It clocks in around 28,000 psi, so it’s not the most powerful handgun from a sole pressure standpoint. But when you consider that it can take a 500-grain bullet to 1150 fps, not to mention generate 1468 foot-pounds of energy at its muzzle, the Magnum Research BFR definitely deserved a spot on the list. 

4. Freedom Arms Model 83, 475 Linebaugh

The 475 Linebaugh is heralded as a highly powerful revolver cartridge, with 50,000 psi. It’s fairly comparable to the .44 Magnum, packing just a slightly more powerful punch. However, since it’s such a large caliber, you do have the advantage of a heavier bullet. A 420-grain projectile can hit 950 fps and produce 841 foot-pounds of energy, making for an ideal weapon for hunting large, dangerous game.

5. Ruger Super Redhawk, 454 Casull

First developed more than six decades ago, the 454 Casull has long been labeled as a bit of a wildcat cartridge – that is, until it was chambered with Ruger’s Super Redhawk in the late 1990s. Now, this dynamic duo is a staple for handgun hunters, specifically those taking aim at big game animals. Its 65,000 psi of chamber pressure pushes a 325-grain (.45-caliber) bullet up to 1525 fps, for 1678 foot-pounds of energy.

Shop Premium Firearms for Sale Online from Matrix Arms

Whether you’re on the hunt for the most powerful pistol on the market or you’re just looking for a no-frills handgun, Matrix Arms has the options you want and the unbeatable prices you deserve. Our collection of precision-quality firearms proves that innovation and affordability can both be possible – but only when you shop with the best in the business. 

Not sure how to pick the perfect pistol for you? The Matrix Arms team is always here to help you navigate our products to choose the ones that suit your unique needs.

Browse our full collection of firearms, aftermarket parts, accessories, and more, and contact Matrix Arms for more information today!

image Joshua Manore

Image of an AR-15 from Matrix Arms

Top Reasons to Own an AR-15

Millions of Americans own at least one gun for protection. Many people prefer handguns or shotguns, but there are numerous reasons to own an AR-15. If you are a gun enthusiast, here are ten reasons you should consider adding an AR-15 to your collection of weapons.

The AR-15 Is a Semi-Automatic Rifle

Gun oppositionists have turned their focus to banning AR-15 weapons when the appeal to ban handguns failed in the 1970s. Disarmament activists argue that automatic weapons give shooters too much power, but it is important to note that the AR-15 is a semi-automatic weapon. One of the biggest advantages of owning this type of gun is having the ability to discharge multiple rounds without needing to lower the weapon and reload manually. This ability makes the AR-15 ideal for self-defense and shooting competitions.

The AR-15 Is Completely Customizable

Every shooter has unique needs when it comes to guns. The AR-15 is the most customizable rifle in history, so you can easily choose one that meets your individual needs. They can be configured for various reasons, including:

  • Hunting
  • Recreational shooting
  • Fighting
  • Competing

You can also choose your stock length and select between fixed and adjustable stocks to meet your unique needs. The AR-15 has a universal design, so it can be swapped easily from the left hand to the right hand, depending upon the dexterity of the shooter.

A-15 Rifles Need To Be Common

The Supreme Court once incorrectly stated that the Constitution grants citizens the right to keep and bear arms that are “in common use.” This contingency means that AR-15 weapons need to be popular for the Supreme Court to continue to support them. The more Americans that own an AR-15, the more likely it is that the Supreme Court will continue to consider it a common weapon.

The AR-15 Is Commonly Used for Marksmanship Competitions

Marksmanship is important for a shooter. While competitions are not the best way to learn defensive shooting techniques, they can show you where you lack shooting skills so that you know what to work on. Participating in marksmanship competitions also allows you to become comfortable with your AR-15 and sharpen your overall shooting skills.

AR-15 Rifles Are Easy To Maintain

Compared to nearly any other gun model, except for the Glock, AR-15s are easy to maintain. Should the government succeed in banning AR-15 weapons, you could maintain and repair your gun with common parts without needing a gunsmith. If you have primers, magazines, and case necks, you are prepared to keep your AR-15 in good shape without needing professional assistance.

AR-15 Rifles Are Useful

Rifles are the most useful type of weapon because they have a wide variety of uses. While recreational shooting and hunting are the most common uses of AR-15 rifles, it’s important to remember that these weapons are invaluable when it comes to defense. These rifles are necessary for suppressing insurrections, defeating tyranny, and stopping invasions. This wide variety of uses makes the AR-15 an invaluable tool.

The AR-15 Is One of the Most Validated Rifles in History

Ar-15 rifles have been used for decades by millions of Americans. Civilians own more AR-15s than the military had M16s in its inventory. The versatility and the accuracy of the AR-15 make it a superior weapon with many uses. Throughout the last six decades, the AR-15 has continued to evolve to become the rifle it is today.

The AR-15 Is Commonly Used in Defensive Shooting Classes

Many people own a gun for protection. You may assume that you are a good defensive shooter because you know how to use a gun, but this is not always true. You will likely never need to use your gun for defense, but you need to be prepared for the possibility in case you ever find yourself in this unfortunate situation. Taking a defensive shooting class from a certified instructor is the best way to prepare yourself. Almost all instructors use AR-15 rifles for defensive shooting classes.

You Can Use Your AR-15 To Prepare Young Americans for Military Service

Our military keeps our nation safe, and it takes a brave and selfless person to join the ranks of the military and risk his or her life for our freedom. If you want to support the military in a tangible way, you can work with young Americans and prepare them for training by helping them practice with your AR-15. However, it’s important t note that this is only a good idea if you are skilled with your AR-15. You need to be a good shooter with excellent marksmanship to mentor future military recruits.

It Is Your Right and Civic Duty To Be Armed

You have a Constitutional right to own a firearm. While handguns may be more beneficial for protecting yourself from common criminals, the AR-15 can also be good for protection. It is legal for you to own this type of gun, and because the firearm is so versatile and useful, it makes a great addition to any gun collection. The AR-15 is the better weapon for resisting the government should it infringe upon your constitutional rights, and this was the intention of our forefathers in creating the Second Amendment.

Find an AR-15 at Matrix Arms

An AR-15 is an excellent addition to any gun collection for all of these reasons. It is always important to stay up to date on current gun laws and make sure that you are comfortable handling any weapons you own. If you do these two things, you can feel comfortable adding an AR-15 to your gun collection.

If you’re in the market for an AR15, Matrix Arms has a huge inventory of weapons for you to choose from. Our expert staff members are here to help you choose the right gun for you. Our shop is located on River Road in New Hampshire, just a short distance from the Connecticut River and the Vermont state line. Contact us today to ask about our inventory, or stop in today to browse our selection of AR-15 weapons.


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Glock™ Lower Parts

Glock™ Lower Parts

Buying your first handgun is an unparalleled experience. But are you building one at home? That’s even better. Fortunately, constructing a custom pistol at home isn’t as complicated as you think. You can create a Glock™-compatible handgun with the correct parts, such as the new Glock™ lower frame. 

Pistol Anatomy 101

No matter what style of pistol you plan to build, custom-built versions will contain the same basic parts. Let’s start with the lower receiver, which houses the triggering system and magazine well. The lower is its own unique assembly that consists of several components:

  • Trigger bar, housing, guard, and connector
  • Magazine catch and spring
  • Pins securing the gun
  • Locking block
  • Slide stop with lever and spring
  • Pistol grip

When building a custom pistol, you also need an upper receiver. The upper includes the barrel plus several other components: spring load bearings, a slide cover plate, front and rear sighting mechanisms, and a recoil spring assembly. There’s also the extractor with its chamber indicator, plus the depressor plunger and spring. In Glock™ handguns, the firing pin and spring are accompanied by a firing pin channel liner that inhibits excess wear in the weapons slider. Finally, the slide cover plate connects the firing pin and extractor depressor plunger. 

Benefits of Building a Custom Pistol

Suppose you’re new to the idea of constructing a custom pistol with Glock™-compatible parts. In that case, you may wonder why people do this when one can go buy a gun—but building something yourself involves learning new skills plus the personal pride of knowing that you built the pistols you use. Whether you’re a shooting range enthusiast, part of a shooting club, interested in self-defense, or all of the above, custom building offers flexibility and convenience.

Building a custom pistol involves putting the upper and lower receivers together. Like other 80% lowers and frames, an 80% Glock™ lower assembly can be shipped. Why? Because an 80% lower isn’t functional, thus it’s not considered a finished firearm under Federal Firearms License laws. 

Ordering individual components allows you to assemble at home, plus you have the freedom to choose OEM or high-quality aftermarket parts when completing your firearm. You will need some specific tools to finish assembling the pistol. These include drilling and cutting equipment. Alternatively, you can complete assembly without machine tools. There’s no shortage of instructional resources that can help you construct your pistol at home. 

Glock™ pistols have a unique advantage over other brands. This isn’t to say that other firearms are less worthy. But what sets the Glock™ apart is its CNC machine-friendly design. Thanks to this design plus its polymer frame, Glock™s can be produced quickly with no hand fitting required. 

Legal Points To Remember

If you want to build your own firearms, you should be mindful of state laws that can impact your purchases. Purchasing 80% lowers is legal in most states, but you can only build for personal use. You cannot sell your finished products unless you have an ATF manufacturer’s license and pay the appropriate taxes and fees. Your completed gun builds must also meet state and local requirements. 

Certain jurisdictions have statutes concerning registration and serialization. You can still order 80% lowers in those states, but you’ll have to comply with their laws carefully. A few, such as New Jersey, have completely prohibited the sale and possession of 80% lowers.

Precision-Manufactured Components

Matrix Arms combines engineering expertise with skilled technicians and efficient production techniques to create a wide range of firearms components that meet or exceed our clients’: uppers, lowers, handguards, and more. Got a question about the Glock™ lower or our products? Just complete our contact form, and one of our reps will get in touch.


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Buying your First AR-15

Buying your First AR-15

The AR-15 is one of the most iconic rifles on the market. Derived from the classic AR-15 design, these firearms are ideal for a range of applications, including hunting, self-defense, and recreation. Its popularity proves this — about 8 million AR-15s and similar models are estimated to be in circulation. If you’re considering joining this number but aren’t sure where to start, you likely have a few questions, like how much is an AR-15, what manufacturer makes the best AR-15 rifle, and where do I find an affordable AR-15? Find the answers to these questions and more in the following guide.

The Most Important Things to Consider When Buying Your First AR-15

When you’re shopping for your first AR-15, there are many factors to take into account. Of course, you want to find a rifle that’s suited for a first-time user, as well as one that’s reliable and affordable. These criteria are some of the most important to consider, but many other important factors are too. In addition to cost and user-friendliness, you should determine what purpose you primarily intend to use your rifle for, as well as how powerful it will need to be. With these criteria in mind, you can find the best AR-15 rifle for your needs.


The cost of an AR-15 can vary widely, but generally speaking, they are an affordable model for new gun owners. With prices reportedly starting as low as $500 and reaching as high as $2,000, there’s an option for every budget. Searching for a model at the lower end of this spectrum may be advisable for rifle hobbyists new to the AR-15 club. Buying a partial build model is a great way to save money while taking advantage of the ability to customize your rifle.


The intended application of your rifle is yet another factor to consider. There are practically endless applications for an AR-15. In addition to the long-range precision, these rifles are ideal for shooting range plinking. You should narrow down how you plan to use your rifle to find the one that’s best suited to your use, and if you plan to find a partial build, assess the accessibility and cost of the customizations your model will need.


When you shop for a gun, you should shop for the right ammunition, too. An AR-15 can be configured to fire several different calibers, including the following:

  • .223
  • .308
  • 9mm
  • 5 Grendel
  • 300 Blackout
  • 56×45mm

These options for ammunition highlight the incredible versatility of the AR-15. Configuration for different calibers can be achieved by changing out a few key components, including the barrel of the rifle. Choosing the right ammunition is key to having the intended impact when you use your AR-15.


Finally, you need to find the right accessories for your AR-15. There are many different add-ons you can use to amp up your rifle’s impact, including the following:

  • Handgrips
  • Slings
  • Bipods
  • Lights
  • Collapsible stocks
  • Sights and optics

These accessories can be added to an AR-15 to improve its performance, make your rifle more accurate, and increase comfort during handling and firing.

Should You Build or Buy Your First AR-15?

When you’ve decided to invest in a rifle, another question remains — will you build your first AR-15, or will you buy a manufactured model? Manufactured models come ready to use upon arrival, while buildable models include only the parts of the rifle, and the owner can then assemble it. A third option available that may be ideal for first-time AR-15 buyers — a partial build model that offers the best of both worlds. Matrix Arms, for example, offers 80% built lower receivers so that buyers can build and customize the remaining 20%.

What Configuration Should I Buy?

When you’re selecting a configuration, you’ll have a few options to choose from. One of these configurations is the gas system length, which typically comes in three options:

  • Carbine length
  • Mid-length
  • Rifle length

Each of these options offers its own benefits to users, but your selection depends largely on the size of your barrel, and it will ultimately determine how quickly your rifle can extract a shell upon firing.

The Carbine-Length System

Many rifle owners favor the carbine length configuration for its early timing. Its extraction process allows for quick firing due to the pressure placed on the brass case. This pressure seals it against the chamber’s wall, and the carbine overcomes this pressure to extract the shell. It is most commonly used in rifles with 10 to 16-inch barrels.

The Mid-Length System

A mid-length system is optimal for a 16 to 18-inch barrel. In this configuration, gas becomes trapped further into the barrel, thus making for a longer extraction time. The longer extraction time can be attributed to this decrease in pressure. Some firearm enthusiasts also prefer the mid-length system because it offers the bullet more time to pass the gas tube while exiting the rifle. This allows for better dwell time and an ideally pressurized shot.

The Rifle-Length Gas System

Finally, a rifle length configuration is typically used for 18 to 20-inch barrels, and it offers the lowest case pressure of the three options as well as the longest extraction time. Many AR-15 professionals cite this system as the easiest to use because it delays extraction longer than the mid-length and carbine systems. It also allows case pressure to plummet, which makes ejection of the spent case easier to achieve.

Find the Right AR-15 for Your Unique Needs

Shopping for your first AR-15 can be daunting, but it doesn’t have to be. Equipped with the right knowledge and a firm understanding of what you want, you can buy confidently. With over a decade of experience in firearms manufacturing, Matrix Arms is the go-to source for experienced and first-time rifle buyers alike. We carry the top brands in the gun industry, allowing customers to shop from a selection of high-quality, precisely manufactured, and expertly engineered options. Choose from AR-15 upper and lower receivers machined from 7075 aluminum forgings. Call us at (603) 665-0232 or reach out online for more information.

Image Source: Eugene Berman / Shutterstock