The Proof Research 103586 Carbon Fiber Bolt-Action Barrel, .224, 26" Sendero Contour is built for shooters who want match-grade precision without the bulk of a traditional steel tube. This barrel uses a stainless steel core wrapped in aerospace-grade carbon fiber to deliver excellent rigidity, reduced weight, and improved heat dissipation, all in a 26-inch Sendero contour with a fast 1:7 twist for modern .224-caliber projectiles.

This carbon fiber bolt-action barrel blank arrives ready for your gunsmith to thread and chamber, giving you flexibility to build a custom rifle tailored to your preferred cartridge and action. Its 2.5-inch breech length, 1.20-inch shank diameter, and approximately 3 lb 3 oz weight make it ideal for precision rifle builds, long-range target shooting, and varmint hunting where consistent accuracy and manageable carry weight matter. Proof Research’s reputation for meticulous engineering and advanced composite construction makes this barrel a trusted foundation for high-performance rifles.

• Manufacturer: Proof Research
• Model: 103586 Carbon Fiber Bolt-Action Barrel, .224, 26" Sendero Contour
• Caliber: .224
• Barrel Length: 26"
• Barrel Twist Rate: 1:7
• Barrel Breech Length: 2.5"
• Barrel Shank Diameter: 1.20"