Black Rifle Depot 16" 5.56 NATO 1:7 Twist Mid-Length Heavy Barrel

16" 5.56 NATO 1:7 Twist Phosphate + Chrome-Lined Midlength Heavy Barrel Hard-Use Durability Meets Combat-Grade Precision in Every Shot. The 16" 5.56 NATO 1:7 Twist Phosphate + Chrome-Lined Mid-length Heavy Barrel from Black Rifle Depot is a premium-grade workhorse built to excel in high-round-count, demanding environments. Featuring a chrome-lined bore for extended barrel life and corrosion resistance, this barrel is finished with a phosphate exterior for added surface toughness. The heavy-profile design ensures excellent heat resistance and tighter shot groupings during sustained fire, while the mid-length gas system delivers smoother recoil and improved reliability over traditional carbine systems. With a fast 1:7 twist rate, this barrel is optimized for heavier 5.56 projectiles, making it ideal for defensive, tactical, or precision shooting. Proudly made in the USA and backed by our 1 MOA guarantee using match-grade ammo, this barrel delivers unbeatable value and long-term performance.