Aero Precision 308 Winchester 7.62mm Bolt Carrier Group AR-308

Our .308 / 7.62 Bolt Carrier Group is the perfect firing mechanism for your big-bore AR build. This high quality BCG features a Black Nitride finish, is MPI/HPT and now includes a laser engraved Aero Precision 'A' logo!\n\nCARRIER FEATURES:\n- Carrier machined from 8620 Tool Steel; Bolt from 9310 Steel; Finish: Black Nitride; Gas Key: 4130 Steel attached with Grade 8 hardware and properly staked; Firing Pin: Machined from 8740 steel and hard chrome coated; Forward Assist serrations; Laser engraved Aero Precision logo (or No Logo option); Carrier fits AR .308 compatible style AR Uppers and Rifles\n\nBOLT FEATURES:\n- Material: 9310 steel; Extractor: 4340 Steel with double o-rings and double springs; MPI/HPT; High pressure bolt - external surfaces CNC ground and firing pin hole diameter reduced to .070\n- Multi-caliber bolt designed to function with .308, 7.62x51, .338 Federal and other .308 based cartridges.\n\nBCG INCLUDES:\n- Bolt carrier; Complete bolt; Firing pin; Cam pin; Retaining pin