Proof Research 107959 Bolt Action Blank 308 Cal 26 in Sendero Contour 1:9 in Twist 5 Grooves, Carbon Fiber Wrapped, Rifle Barrel

Overview

The Proof Research bolt action barrel blank is built to start custom rifle builds with modern design and manufacturing methods. Featuring a .308 caliber unchambered profile with a 26-inch length, 1:9-inch twist rate, and 5-groove rifling, this barrel is constructed with a match-grade stainless steel liner wrapped in a high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin. It includes a 2.5-inch breech length, a 1.2-inch shank diameter, and a Sendero contour profile, weighing approximately 3.2 lbs. This carbon fiber wrapped construction provides superior heat dissipation for cooler and longer-lasting performance while remaining up to 64% lighter than traditional steel barrels of similar contour. This barrel requires finishing by a professional gunsmith and arrives ready to thread and chamber.

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