20" 5.56 NATO 1:7 Twist Parkerized Heavy Rifle Barrel

20" 5.56 NATO 1:7 Twist Parkerized Heavy Rifle Barrel The Black Rifle Depot 20" 5.56 NATO Heavy Barrel is built for shooters who want a durable, full-length AR-15 barrel at a strong value. BRD sources its private-label barrels from established U.S. manufacturers and purchases in volume to help keep pricing competitive without sacrificing quality. This barrel features a heavy profile, rifle-length gas system, 1:7 twist, .750" gas block journal, and 1/2x28 muzzle threads. The Parkerized finish provides a durable exterior treatment, while the 5.56 NATO chamber supports a wide range of commonly available ammunition. Features 20" heavy-profile AR-15 barrel Chambered in 5.56 NATO 1:7 twist rate Rifle-length gas system .750" gas block journal 1/2x28 muzzle threads Parkerized finish American made Sourced from Tier 1 U.S. manufacturers Manufactured under ISO 9001 or better quality standards BRD MOA guarantee on barrels 16" and longer when used with properly weighted match-grade factory ammunition from a rest Strong value for new builds and replacement-barrel projects Specifications Brand: Black Rifle Depot Product Type: AR-15 Barrel Platform: AR-15 Caliber: 5.56 NATO Barrel Length: 20 in. Barrel Profile: Heavy Twist Rate: 1:7 Gas System Length: Rifle Gas Block Journal: .750 in. Muzzle Thread: 1/2x28 Finish: Parkerized Country of Origin: USA