This DPMS style 7.62/.308 bolt carrier group is laser engraved with the Aero Precision "A" logo. Features a billet carrier machined from 8620 steel, properly staked gas key, chrome lined gas key and firing pin channel, and forward assist serrations. The bolt is machined from 9310 steel, shot peened, high pressure tested (HPT) and magnetic particle inspected tested (MPI). Functions with .308, 7.62x51, 6.5 Creedmoor, .338 Federal and other .308 based cartridges. Mil-Spec phosphate finish. MADE IN THE U.S.A.