The Proof Research Sendero Carbon Fiber Barrel (brand part no. 103449) is a 20-inch bolt-action barrel built around .224-caliber cartridges, wrapped in Proof’s carbon fiber construction to cut weight versus an equivalent steel barrel of the same length and contour. A 1-in-8 twist rate stabilizes the longer, heavier-for-caliber .22-caliber bullets favored for extended-range varmint and predator shooting, and a 2.5-inch breech length with a 1.20-inch shank diameter are machined to standard bolt-action receiver specs. At roughly 2 pounds 14 ounces, it stays dramatically lighter than a comparable steel barrel, making it a popular option for hunters who want to keep an accurate, flat-shooting rifle light in the field.

Key Specifications

• Chambered around .224-caliber cartridges.
• 20-inch carbon-fiber-wrapped barrel in the Sendero contour.
• 1-in-8 twist rate stabilizes long, heavy-for-caliber .224 bullets.
• 2.5-inch breech length and 1.20-inch shank diameter for standard bolt-action fit.
• Weighs approximately 2 pounds 14 ounces, far lighter than steel.

Frequently Asked Questions

What twist rate does this barrel use? A 1-in-8 twist, suited to long, heavy .224-caliber bullets.

Why choose a carbon barrel over steel? It cuts significant weight while keeping the stiffness needed for accuracy.

Buy the Proof Research .224 Sendero Carbon Barrel

Keep your varmint rifle light and accurate in the field. Order this Proof Research barrel from our rifle barrel selection, and our Lubbock, Texas team will get it shipped fast.