Product Features & Specifications Diamondback 65M18M50B8R DB Barrel 6.5 Grendel 18" Mid-Length Black Nitride 4150 Chrome Moly Vanadium Steel The Diamondback DB Barrel for 6.5 Grendel features an 18" mid-length design, constructed from 4150 chrome moly vanadium steel with a black nitride finish.
