Like New Sig Sauer 516 Gen II Piston upper. Barrel length was 14.50" so a NoX KeyMo brake was pinned and welded in the neutral position to make it just over 16" so you can put it on a stocked lower.

comes with Radiant Charging handle, magpul Gen II BUIS set, and Sig's factory full auto piston BCG.

has less than 100 rounds through it, please feel free to inspect to your hearts content if you want to purchase.

location is Ahwatukee, text me at 480-258-4800 to purchase.