CMC Triggers Enhanced BCG 6mm ARC — Black Nitride

The CMC Triggers Enhanced Bolt Carrier Group is built for AR-15 platforms chambered in 6mm ARC and is optimized for use with suppressors and short-barreled rifles. The enhanced carrier features a flared rear to reduce carrier tilt and relocate bearing surfaces for smoother cycling. Carrier components are made from case-hardened 8620 steel while bolt components use 9310 steel, finished with a black nitride coating. This BCG is MPI and HPT tested and includes mil-spec extractor spring and O-ring components.

Key Specifications

• Compatible with 6mm ARC.
• Carrier material: Case-hardened 8620 steel.
• Bolt material: 9310 case-hardened steel.
• Finish: Black Nitride.
• Design feature: Suppressor-optimized enhanced carrier with a flared rear to reduce carrier tilt.
• Cam pin material: Hardened 4340 steel.
• Firing pin material: Mil-spec 8740 steel.
• Testing: MPI and HPT tested.
• Extractor components: Mil-spec extractor spring and O-ring.
• Additional feature: Enlarged forward ports to aid reliability when suppressed.

Purpose-built for shooters who require a durable, suppressor-friendly bolt carrier group for 6mm ARC AR-15 platforms, this CMC Enhanced BCG blends robust materials and factory testing to support reliable function in suppressed and short-barreled configurations. Its precision-ground bolt surfaces and reduced-friction carrier geometry simplify maintenance and contribute to consistent extraction and cycling characteristics.