Flat Top Piston Upper Receiver


SKU: FGAA-10131 Categories: ,


Availability: Backordered 8-12 weeks



** This upper is NOT eligible for free bag and magazine promotion **


The Adams Arms Piston Upper Receiver comes with:

  • M4 Feed Ramps
  • Type III Hard Coat Anodyzing with a dry film lube
  • T Marked Picatinny Rails
  • Receiver hole has been cut to .180″ eliminating the need for a receiver bushing
  • Cam Pin channel is cut to a 45 degree angle to eliminate Cam Pin wear
  • Weight: 8.57 oz.

Additional Information

Weight 3 lbs
Dimensions 10 × 4 × 4 in
Click outside to hide the comparison bar