Faxon continues our fantastic barrel-making with a bit more punch. We've updated our previous Medium-Taper profile taking into account customer feedback, optimizing the barrel to meet the Gunner brand's high standards. The 6.5 Big Gunner profile barrels are the big-brother to our famous 5.56 Gunner barrels. The Big Gunners feature a medium-taper behind the gas block. The gas block journal is set to .750" for compatibility with most common gas blocks and 1.9" in length for long blocks or aftermarket piston kits. From the gas block journal forward we use a thinner taper, designed to reduce weight yet maintain rigidity for high rates of fire and as a suppressor host. Barrel Material: 416-R Barrel Type: 5R Button Rifled Barrel Caliber: 6.5 Creedmoor Barrel Twist: 1:8 Barrel Length: 18 Barrel Profile: Big Gunner Barrel Gas System: Rifle Inside Finish: Salt Bath Nitride Outside Finish: Salt Bath Nitride Muzzle Thread: 5/8-24 Gas Block Diameter: .750" Gas Block Journal Length: 1.9" Barrel Extension: DPMS LR-308 Compatible - Nickel Teflon Coated Barrel Weight: 2.46lbs Magnetic Particle Inspected Polished 11-degree Target Crown