By designing a bolt action barrel blank, we have opened up countless options for chambering in your favorite caliber and having the ability to fit a large variety of actions. Our bolt-action barrels are available in a variety of calibers, lengths, contours and twist rates. Your bolt-action barrel will arrive ready for thread and chamber by your gunsmith. Features: Lightweight - up to 64% lighter than traditional steel barrels of similar contour Extreme temperature resistance - improved heat dissipation for cooler and longer lasting barrels Unprecedented durability - wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin