The Ballistic Advantage 5.56 20" AR-15 Barrel – Government Profile Rifle Length 1:7 Twist is a premium modern series barrel designed for exceptional velocity and accuracy. Crafted from 4150 CMV (chrome moly vanadium) steel, this 20" government profile barrel features a rifle-length gas system for a smooth, gentle recoil impulse.

With a 1:7 twist rate optimized for stabilizing heavier projectiles and a QPQ corrosion-resistant nitride finish, this barrel delivers outstanding accuracy and longevity. The 20" length maximizes velocity for 5.56 ammunition. Precision-machined and backed by Ballistic Advantage's sub-MOA accuracy guarantee with match-grade ammunition, it's an exceptional choice for building an accurate, soft-shooting AR-15 rifle.

Specs:

• Caliber: 5.56 NATO
• Barrel Length: 20"
• Material: 4150 CMV Steel
• Finish: QPQ Corrosion-Resistant Nitride
• Barrel Profile: Government
• Gas System: Rifle Length
• Twist Rate: 1:7
• Muzzle Thread: 1/2x28
• Gas Block Diameter: .750"
• Weight: 35 oz