The CMC Enhanced Bolt Carrier Group (brand part no. 81635) is a suppressor-optimized bolt carrier group with a bolt face and dimensions machined for the 6mm ARC cartridge, finished in black nitride. CMC Triggers built it for shooters who want a heart-of-the-rifle component matched to the newer 6mm ARC cartridge running suppressed.

Key Specifications

• Caliber: 6mm ARC.
• Optimization: suppressor-optimized bolt carrier group.
• Finish: black nitride.
• Product type: Bolt Carrier Group.
• Material: case-hardened 8620 steel, CNC ground after heat treatment for a precision fit.

Frequently Asked Questions

What caliber is this BCG built for? 6mm ARC.

Is this BCG suited to suppressed shooting? Yes, it is built as a suppressor-optimized bolt carrier group.

Buy the CMC Enhanced Bolt Carrier Group, 6mm ARC, Nitride, Black

Upgrade with the CMC Enhanced Bolt Carrier Group, 6mm ARC, Nitride, Black from CMC Triggers, browsable in our full AR bolt carrier groups selection. Our Lubbock, Texas team ships fast, insured orders every day.