Proof Research 104675 Bolt Action Barrel Blank 243 Cal 24″ Sendero Contour 1:7.50″ Twist 4 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.