Proof Research Carbon Fiber Barrel Blank 308 Caliber 26" Sendero Contour 1:9" Twist 1.25" Breech

Overview

The Proof Research Carbon Fiber Barrel Blank is a 26-inch, .308 caliber match-grade barrel featuring a Sendero contour and a 1:9" twist. Produced in-house from double-stress relieved 416R stainless steel, each barrel is drilled, contoured, reamed, cut rifled, lapped, and borescope-inspected for consistent accuracy. It is wrapped in high-strength, aerospace-grade carbon fiber using a proprietary matrix resin and helical wrapping pattern, which optimizes longitudinal thermal diffusivity to dissipate heat efficiently, maintain accuracy over long strings of fire, and provide unprecedented durability while remaining significantly lighter than traditional steel barrels.

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