Proof Research Pre-Fit Barrel Features The Proof Research Pre-Fit Barrel for the Sig Sauer Cross arrives complete with the factory barrel extension allowing shooters to swap barrels without the fitting work a standard aftermarket barrel requires. Wrapped in high strength aerospace grade carbon fiber impregnated with a proprietary matrix resin the barrel is up to 64 percent lighter than a traditional steel barrel of similar contour. This weight reduction makes a meaningful difference in overall rifle balance and carry weight especially for shooters who spend long days moving between positions. The carbon fiber wrap also improves heat dissipation helping the barrel run cooler and last longer through strings of fire that would otherwise build heat quickly in a steel barrel. Chambered in .22 Creedmoor this 20 inch barrel carries a 1:8 twist rate matched to stabilize the cartridge s typical bullet weights and a 5/8x24 thread pattern accepts standard muzzle devices and suppressors. At 2 pounds 9 ounces it keeps the rifle nimble without sacrificing the accuracy Proof Research barrels are known for. Shooters seeking enhanced precision and maneuverability will find this pre-fit design lets them quickly and confidently change calibers on their Cross rifle. Proof Research s reputation for unprecedented durability and extreme temperature resistance makes this barrel a dependable long term upgrade. Proof Research Pre-Fit Barrel Specifications Manufacturer: Proof Research Model: Pre-Fit Barrel Compatible Hosts: Sig Sauer Cross Caliber: .22 Creedmoor Barrel Length: 20 Twist Rate: 1:8 Thread Pattern: 5/8x24 Finish: Stainless Epoxy Material: Carbon Fiber Weight: 2 lbs 9 oz Available At: GrabAGun