CMC Triggers 81631 Enhanced Bolt Carrier Group for AR15 in 5.56/.223/300 Blackout Caliber, Black

The CMC Triggers Enhanced Bolt Carrier Group is engineered for superior performance in AR15 rifles chambered in 5.56, .223, and 300 Blackout. Features a flared rear design that minimizes carrier tilt during recoil, enhancing overall reliability by optimizing key bearing surfaces. Constructed from case-hardened 8620 steel with fewer contact points to reduce friction, ensuring smoother operation and longevity. Includes an increased mass for better gas pressure management, which improves extraction efficiency, especially with suppressors or short-barreled rifles. The bolt assembly is made from precision 9310 case-hardened steel, with external surfaces CNC ground after heat treatment for an exact fit. Additional enhancements include a precision-ground trumpet area for easier cleaning, shot-peened and black nitride-coated components, and compatibility with Mil-Spec standards. This group is MPI and HPT tested, featuring hardened 4340 cam pin, Mil-Spec extractor spring and O-ring, and an enlarged forward port for optimized suppressor use.

Features:

• External surfaces are CNC ground after heat treatment for a precise, reliable fit..
• Made from durable 9310 case-hardened steel to withstand rigorous use..
• Bolt components are shot peened and coated in black nitride for enhanced durability and corrosion resistance..
• Enlarged forward ports allow for better gas flow and performance..
• Optimized specifically for use with suppressors, ensuring consistent functionality..

Specifications:

• Brand: CMC Triggers
• ProhibitedStates: None
• Length: 11.00
• Color: Black
• Height: 1.50
• Sku: 1002802
• Width: 4.00
• Weight: 0.83