CMC Enhanced BCG Standard AR-10 308/6.5CM CMC81633

When reliability and precision matter, the CMC Enhanced Bolt Carrier Group brings purpose-built performance to your AR-10 platform. Finished in durable black nitride, this BCG resists corrosion and wear while offering a slick, consistent action that reduces friction and improves extraction in adverse conditions. CMC engineered the carrier with enlarged forward gas ports to improve gas flow and ensure dependable cycling, especially when the system is suppressed or running heavier rounds like .308 and 6.5 Creedmoor.

Suppressed setups demand careful attention to timing and gas management, and the Enhanced BCG answers that with features optimized for can use. The enlarged forward ports paired with the nitride surface treatment help control gas pressures and promote reliable function across a wide range of loads and suppressor back-pressures. That means fewer malfunctions and more consistent bolt velocity shot to shot — exactly what you want whether you’re running heavy match rounds, duty loads, or suppressed subsonics.

Internals are built to hold up under hard use. The cam pin is hardened 4340 steel for increased shear strength and long service life, and the firing pin meets Mil-Spec 8740 standards to ensure dependable ignition even after extended firing cycles. Extraction hardware is also top tier: the extractor uses a Mil-Spec spring and O-ring for consistent bite and retention under high-temperature, high-pressure conditions. CMC didn’t cut corners on the small things that keep rifles running when it counts.

Compatibility is straightforward — this BCG is designed for .308 and 6.5 Creedmoor platforms, offering drop-in fitment for standard AR-10 setups where proper headspace and dimensional tolerances are observed. Installation is simple, and once it’s in your rifle you’ll notice the refined feel of the action: smooth, controlled, and engineered to withstand the demands of field service, competition, or dedicated range work.

If you want a BCG that’s built to perform with suppressors, heavy loads, and prolonged use, the CMC Enhanced BCG is a high-quality upgrade that focuses on durability, consistent gas management, and Mil-Spec durability where it matters most. It’s a pragmatic, tactical choice for shooters who expect their equipment to work without excuses.

Order it today from SMKW!