Aero Precision 308 Winchester Bolt Carrier Group

Aero Precision 308 Winchester Bolt Carrier Group is a firearm component manufactured for platform compatibility and functional operation.

This item is produced using standard machining and material specifications appropriate for its intended platform. Review the technical specifications below for compatibility and configuration details.

Aero Precision 308 Winchester Bolt Carrier Group

Shop for M5 Aero 308 BCG at Aero Precision. Our BCGs are HPT/MPI and are the perfect firing mechanize for your next large caliber AR 10 build.

Aero Precision 308 Phosphate Bolt Carrier Group

Our .308 / 7.62 Bolt Carrier Group is an excellent choice for your big-bore rifle build. This high-quality BCG has a mil-spec phosphate finish, is MPI/HPT tested, and now features a laser-engraved Aero Precision ‘A’ logo!

Carrier Features:

• Made from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)
• Finish: Mil-spec phosphate coating
• Gas Key: Made from 4130 Steel, attached with Grade 8 hardware, and properly staked
• Firing Pin: Made from 8740 steel and hard chrome coated
• Forward assist serrations
• Laser-engraved Aero Precision logo
• Fits AR .308 compatible uppers and rifles

Bolt Features:

• Material: Case-hardened 9310 Steel
• Finish: All bolt parts are shot peened and phosphate coated
• Extractor: Made 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 treatment for a precise fit, and the firing pin hole diameter is reduced to .070″
• Multi-caliber bolt designed to work with .308, 7.62×51, .338 Federal, and other .308-based cartridges.

Includes:

• Bolt carrier
• Complete bolt
• Firing pin
• Cam pin
• Retaining pin

Take a look at our trigger parts collection.

Compliance Notice: The purchaser is responsible for ensuring compliance with all applicable federal, state, and local laws regarding ownership and use.