Aero Precision .308 WINCHESTER /7.62MM BCG W/9310 BOLT NICKEL FOR AR-308 APRH100185C

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