.308 / 7.62 Bolt Carrier Group, Complete – Black Nitride

.308 / 7.62 Bolt Carrier Group, Complete – Black Nitride 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 provided for details regarding compatibility, dimensions, and configuration.

Product Info for Aero Precision .308 Winchester Bolt Carrier Group

The .308 / 7.62 Bolt Carrier Group is the perfect firing mechanism for your big-bore rifle build. This high-quality 308 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, 7.62×51, .338 Federal, and other .308 based cartridges.

308 BCG Includes:

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

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