AR-15 Bolt Carrier Group

Upgrade your rifle with a high-quality AR15 Bolt Carrier Group from Bear Creek Arsenal, designed for dependable operation, reduced wear, and long-term reliability. Each AR15 BCG is manufactured from durable 9310 steel and Magnetic Particle Inspected (MPI) to ensure consistent performance over time. As a critical AR15 component, our AR 15 BCG includes the bolt, carrier, firing pin, gas key (staked), cam pin, and retaining pin, all working together to cycle rounds through loading, firing, extracting, and ejecting. Standard options feature a black nitride finish for corrosion resistance and durability, while Nickel Boron BCG variants offer enhanced lubricity and easier cleaning. Compatible with popular AR15 calibers such as 5.56 NATO, 7.62x39, and 6.5 Grendel, this BCG delivers reliable performance and is backed by a limited lifetime warranty.