The Proof Research 100981 Carbon Fiber Blank Bolt Rifle Barrel, .308, 20.00" Sendero Contour is built for shooters who want a lightweight barrel without giving up stiffness or consistency. This carbon fiber–wrapped stainless steel barrel blank uses a Sendero contour and a 20-inch length to balance rigidity, heat management, and overall weight for demanding precision rifle builds.

Chambered for .308 Winchester with a 1:10 twist rate, this blank features a 2.5-inch barrel breech and a 1.20-inch shank diameter to pair with quality bolt actions and custom rifles. Ideal for long-range hunting, precision range work, and serious training, it arrives as a blank ready for final chambering and fitting by a skilled gunsmith. Proof Research’s focus on advanced materials and careful manufacturing helps deliver repeatable accuracy and dependable performance.

• Manufacturer: Proof Research
• Model: 100981 Carbon Fiber Blank Bolt Rifle Barrel .308 20" Sendero Contour
• Caliber: .308 Winchester
• Barrel Length: 20 inches
• Twist Rate: 1:10
• Barrel Breech: 2.5 inches
• Shank Diameter: 1.20 inches