Aero Precision AR15 5.56 Complete Bolt Carrier Group - Black Nitride No Logo
Aero Precision No Logo M16 cut colt carrier group. Machined from 8620 Tool Steel (carrier) and 9310 Steel (bolt). Black Nitride finish, properly staked gas key, shot peened, HPT tested and black o-ring insert on extractor. Made in the U.S.A.