The Aero Precision AR10 308 Bolt Carrier Group is a high-quality firing mechanism for large-frame AR builds. This BCG features a durable black nitride finish that reduces friction and minimizes maintenance needs. It's compatible with multiple calibers including .308 Win, 7.62x51, and 6.5 Creedmoor. The bolt carrier group is MPI and HPT tested to ensure reliability and includes a laser-engraved Aero Precision logo.

Features/Specs:

• Caliber: .308 Win / 7.62 NATO / 6.5 Creedmoor compatible
• Finish: Black Nitride
• Carrier Material: 8620 Tool Steel
• Bolt Material: 9310 Steel, case hardened
• Gas Key: 4130 Steel, properly staked with Grade 8 hardware
• Firing Pin: 8740 steel, hard chrome coated
• Forward assist serrations
• MPI (Magnetic Particle Inspected) and HPT (High Pressure Tested)
• Extractor: 4340 Steel with double O-rings and springs
• Reduced firing pin hole diameter (0.070")
• Laser-engraved Aero Precision logo
• Weight: Approximately 18.56 oz
• Compatible with AR10/LR308 style rifles