Proof Research Pre-Fit Barrel Features The Proof Research Pre-Fit Q Fix Barrel uses a carbon fiber wrapped match-grade steel core to significantly reduce weight over a comparable all-steel barrel while retaining the rigidity needed for consistent repeatable accuracy. Chambered in 6mm Creedmoor with a 1-in-7.5 twist rate the barrel is cut to stabilize the heavier high-BC bullets favored by long-range shooters and competitors. At 20 inches the barrel is shorter than Proof s 24-inch offerings for this cartridge giving shooters a more compact maneuverable option. A 5/8x24 threaded muzzle lets shooters add a suppressor or muzzle brake to manage recoil during extended range sessions. Designed as a pre-fit direct replacement for the Q Fix action the barrel weighs 2 lbs 8 oz keeping the rifle balanced without adding excess front-end weight. Installation swaps out the factory barrel for shooters looking to unlock tighter groups and extended barrel life over a standard factory-contour steel barrel. The stainless steel finish resists corrosion in the field standing up to repeated range trips and hunting conditions alike. Rounding out a serious upgrade path the Proof Research Pre-Fit Barrel gives Q Fix owners a lightweight match-grade option for chasing precision at extended distances. Proof Research Pre-Fit Q Fix Barrel Specifications Brand: Proof Research Model: Pre-Fit Q Fix Barrel Type: Rifle Barrel Caliber: 6mm Creedmoor Barrel Length: 20 Twist Rate: 1-in-7.5 Muzzle Thread: 5/8x24 Finish: Stainless / Carbon Fiber Compatible Hosts: Q Fix Weight: 2 lbs 8 oz Available At: GrabAGun