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, Nickel or Phosphate 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 BOLT FEATURES: Material: Case Hardened 9310 Steel 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
The Aero Precision .308 / 7.62 Bolt Carrier Group is the perfect firing mechanism for your big-bore rifle build. This high quality BCG features a mil-spec phosphate finish and now includes a laser engraved Aero Precision "A" logo! Carrier Features: Billet carrier machined from 8620 steel and case hardened Now features laser engraved Aero Precision logo Mil-Spec phosphate coating Properly staked gas key Chrome lined gas key and firing pin channel Forward Assist serrations Bolt Features: High pressure .308 bolt machined from 9310 steel and case hardened Multi-caliber bolt designed to function with .308, 7.62x51, 6.5 Creedmoor, .338 Federal and other .308 based cartridges. Shot peened HPT/MPI Extractor machined from 4340 steel with double o-rings and springs BCG Includes: Bolt carrier Complete bolt Firing pin Cam pin Retaining pin