KAK 12.5″ 5.56 Barrel, Nitride, .750

12.5″ 5.56 NATO barrel built for dependable performance in compact rifle and pistol setups Carbine-length gas system with .750 gas block journal and pre-dimpled for easy installation Durable nitride finish with 1:7 twist for stabilizing a wide range of bullet weights Machined in-house from 41V50 chrome moly vanadium blanks, this barrel is built to the same standards trusted by major OEM manufacturers.