AR-15 Bolt Carrier Group
Bear Creek Arsenal’s AR-15 Bolt Carrier Group (BCG) collection delivers uncompromising reliability for builders and enthusiasts alike. Each bolt carrier group is crafted from 9310 steel and undergoes Magnetic Particle Inspection (MPI) to ensure millisecond-perfect performance. Standard models feature a black nitride finish for corrosion resistance and durability, while our Nickel Boron variants offer unmatched lubricity and ease of maintenance. Compatible across popular calibers—like 5.56 NATO, 7.62×39, and 6.5 Grendel—every complete BCG includes a bolt, carrier, firing pin, cam pin, gas key (staked), and retaining pin. Proudly made in Sanford, NC, each unit offers a reliable cycling solution, backed by our limited lifetime warranty.