Proof Research 100998 Bolt Action Barrel Blank 308 Cal 22″ Sendero Contour 1:10″ Twist 5 Grooves, Carbon Fiber Wrapped

Up to 64% lighter than traditional steel barrels of similar contour. Improved heat dissipation for cooler and longer lasting barrels. Wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin.