CMC Triggers BBL556002 AR-15 Barrel 5.56 NATO 10.5" 1:7 Twist Black Nitride - Button Rifled

The CMC Triggers BBL556002 AR-15 barrel is a precision-built replacement chambered in 5.56 NATO. Cut to a compact 10.50" length, this barrel is purpose-built for short, maneuverable AR-15 rifle configurations.

The barrel is machined from 41V50 Chrome Moly Vanadium (CMV) steel, the same grade of material widely used in duty-grade rifle barrels. Its 1:7" twist rate stabilizes the full range of 5.56 NATO and .223 Remington bullet weights, from light varmint projectiles up through heavier 77-grain match loads.

Rifling is produced via the button rifled process for consistent groove geometry and dependable accuracy. The barrel uses a Government profile under the handguard, is paired with a carbine-length gas system for reliable cycling in compact builds, and is threaded 1/2x28 to accept standard 5.56 muzzle devices, compensators, and suppressors.

A black nitride finish provides excellent wear and corrosion resistance along with a clean matte appearance. Designed as a direct-fit replacement for the AR-15 platform, this barrel drops into a standard upper receiver assembly. Whether you are building a new compact rifle or replacing a worn barrel, the CMC Triggers BBL556002 delivers proven materials, a versatile twist rate, and a reliable gas system in a ready-to-install package.