The AR-STONER 6.5 Grendel Barrel is excellent for this potent and accurate cartridge. Chambered in 6.5 Grendel and manufactured from 4150 Chrome Moly Vandium Steel, this 1 in 8" Twist, heavy contour barrel gives you high quality at a great value. Additional features include M4 feed ramps and a 5/8"-24 threaded muzzle. The barrel extension and locator pin are both included and installed at the factory. For an accurate barrel at an affordable price, look no further than the AR-Stoner 6.5 Grendel Barrel. FeaturesChambered in 6.5 GrendelHeavy Contour Barrel5/8"-24 Threaded MuzzleType II