Aero Precision

Our .308 / 7.62 Bolt Carrier Group is the perfect firing mechanism for your big-bore rifle build. This high quality BCG features a Black Nitride finish is MPI/HPT and now includes a laser engraved Aero Precision 'A' logo! - Carrier Features: - Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt) - Finish: Black Nitride - advanced lower friction coating that minimizes the need for lubricants and cleaning - 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 - Carrier fits AR .308 compatible style AR Uppers and Rifles - Bolt Features: - Material: Case Hardened 9310 Steel - Finish: All bolt components are shot peened and black nitride coated - Extractor: Machined from 4340 Steel with double o-rings and double springs - Magnetic Particle Inspected and High Pressure Tested - High pressure bolt - external surfaces are CNC ground after heat treat for a precision fit and firing pin hole diameter is reduced to .070 - Multi-caliber bolt designed to function with .308 7.62x51 .338 Federal and other .308 based cartridges. - BCG Includes: - Bolt carrier - Complete bolt - Firing pin - Cam pin - Retaining pin