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5.56 Stripped Lower

5.56 Stripped Lower


Out of stock


Designed with quality and durability in mind, the Matrix 5.56 stripped lower is the ultimate foundation for your next build. 

  • Machined from American-made Mil-Spec 7075 T-6 aluminum forgings
  • .250 take down/pivot pin holes
  • .156 fire control pins
  • Hardcoat anodized/matte black finish
  • Weight 14 Oz



Additional information

Weight 2 lbs






    I purchased this lower through a major retailer for a build. After receiving it and putting the rifle togerher, this lower far surpassed my expectations. It has tight tolerances and fitment, and the quality is outstanding. I bought 7 more and it has now become my preferred lower over my previous well known brand choice. You will be very happy with the quality and performance and reliability.

  2. tks5574

    I purchased a complete Matrix Aerospace AR-15 rifle from a local gun store.
    The very first thing I did was to check the fit of the upper and lower receivers. They were tight as a drum, and I bought the rifle.
    I later tore down the rifle and built a M4 with the best parts I could get. I had 3 other AR platform rifles, including a Rock River Arms Carbine. The Matrix Receiver set is still the very best I have, or could ask for. The finish is flawless, as is the rest of this set.
    Fantastic Work Guys! You can’t go wrong with Matrix Arms!
    Tim Stewart

  3. Eroc

    I bought this lower from a major retailer not knowing what to expect. Once I went to ffl I was surprised to see it in a padded box and the lower was flawless! The anodizing is so nice and even and fits tight to several uppers I tried. This lower rates up there with other higher end manufacturers and has become my favorite by far, so if your on the fence GO BUY THIS LOWER….. you’ll thank me later!

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