TacFire BCG308 Bolt Carrier Group .308 Win Black Nitride Steel AR-10 DPMS Profile

The TacFire BCG308 is a Mil-Spec-pattern Bolt Carrier Group designed for the AR-10 / LR-308 large-frame platform chambered in .308 Win / 7.62x51 NATO. Cut to the DPMS LR-308 GEN 1 profile, this BCG drops into any standard DPMS-pattern AR-10 upper receiver, making it a direct-fit replacement or upgrade for big-bore .308 builds.

The carrier is machined from 8620 steel and the bolt is forged from 9310 steel, both finished in a black QPQ nitride treatment that delivers excellent wear resistance and corrosion protection. The bolt is magnetic particle inspected (MPI) and shot peened for long-term fatigue strength, and the carrier is serrated for use with a standard AR-pattern forward assist.

The properly staked, nitride-treated gas key ensures consistent gas flow and reliable cycling in semi-auto builds. Made in the USA, the TacFire BCG308 is a solid choice for assembling a new AR-10 / LR-308 rifle, replacing a worn carrier, or upgrading from a budget BCG in an existing build.