High-Quality 5.56 Barrel For Your Carbine
Black nitride, carbine-length barrels are chambered for 5.56mm NATO and have 1-7" rifling that helps stabilize heavy bullets. Exterior is sized to accept a .750" gas block, with the gas port positioned for a carbine-length gas system. Threaded ½"-28 tpi muzzle accepts a standard AR-15/M16 flash suppressor or muzzle brake. Pre-installed barrel extension has M4 feed ramp cuts that aid in reliable feeding. Fluted model has distinctive diamond cuts on the exterior that reduce weight, enhance rigidity, and give your rifle a unique custom look. Also provides extra surface area to aid in cooling the barrel.
AR-15, Issue:10, Page:019
Big Book Catalog, Issue:68, Page:021
SPECS: 4140 carbon steel, heat treated to Rc 25-32, matte black nitride finish. 16.5" OAL. .750" O.D. at gas block. Muzzle threaded ½" x 28. 1-7" rifling twist rate.