CMC Triggers BBL556001 5.56 NATO 7.50" 1:7 Twist Chrome Moly Vanadium Barrel - Black Nitride

The CMC Triggers BBL556001 is a precision 5.56 NATO barrel purpose-built for the AR-15 platform. At 7.50" overall, it is a compact barrel sized for AR-15 pistol configurations and other short-barrel builds where handling and maneuverability matter most.

The bore is cut by button rifling in Chrome Moly Vanadium Steel for tight, concentric grooves and consistent shot-to-shot accuracy. A 1:7" twist stabilizes the full spread of common 5.56 projectiles, from lighter M193-style loads up through heavier 77- and 80-grain match and barrier-blind rounds.

A Black Nitride finish hardens the surface and adds excellent corrosion and wear resistance, so the barrel holds its accuracy and appearance through high round counts. Drop it into your favorite AR-15 upper and head to the range.