SOLGW M4 Complete Lower w/ A5 Buffer System | Complete Lower Receiver | Sons Of Liberty Gun Works


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(4 customer reviews)

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The Sons of Liberty Gun Works AR-15 lower receivers are built from mil-spec 7075-T6 forgings from the lead forge in the U.S. They contour is fully machined leaving no flash marks from the forging. We take extra care when machining our lower receivers resulting in tolerances that are tighter and fits that are better than other lower receivers. We use mil-spec Matte black hard-coat anodized Mil 8625 Type 3 Class 2 finish.


  • Forged from 7075-T6 aluminum
  • Machine finished to improve tolerances
  • Matte black hardcoat anodized finish
  • Angry Patriot Logo
  • Three position selector markings
  • Compatible with Mil-Spec parts and receivers
  • B5 Furniture
  • SOLGW Ambi Safety
  • Liberty Fighting Trigger

Additional information

Weight 64 oz
Dimensions 16 × 6 × 3 in
Thread Pitch


4 reviews for SOLGW M4 Complete Lower w/ A5 Buffer System | Complete Lower Receiver | Sons Of Liberty Gun Works

  1. georgekenpo (verified owner)

    Solid lower. Fit and finish is as good as you can get. No marks observed from assembly, and no factory tooling marks are present, either. Parts stay put, and don’t wiggle or rattle around.

    Trigger is a bit on the heavier, “milspec” side (compared to, say, a Geissele SD-C), however it is very smooth. No complaints there. I didn’t expect the 9 point adjustable buffer tube, so that was very welcome.

    B5 furniture and VLTOR A5 buffer. Quality workmanship. Solid trigger. All of my future builds will use this lower.

  2. joshmakievsky (verified owner)

    Nothing short of quality from SOLGW. Matched with a 11.5” M4-67 upper, it runs smooth and reliable suppressed and unsuppressed. Only down side is they’re never in stock.

  3. rogerbellorin51 (verified owner)

    An absolute beauty of a lower, fit and finish is amazing. On top of the staking on the castle nut is a work of art. You won’t be let down if you get the chance to snag one. Received mine and quickly formed 1 it and and it just runs.

  4. Anthony (verified owner)

    Great lower! Quality craftsmanship, and quality components. Do not hesitate to pick this up!

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