Designed for maximum versatility, our bolt-action barrel blanks provide a vast array of options for your custom rifle. Available in multiple calibers, lengths, contours and twist rates, these barrels fit a wide range of actions and arrive ready for threading and chambering by your gunsmith. They're ideal for wildcat cartridges and other non-standard designs and built to operate safely within SAAMI and CIP pressure limits. Up to 64% lighter compared to traditional steel barrels with a similar contour Enhanced thermal resistance - optimized heat dissipation for cooler and more durable barrels The product exhibits exceptional durability, being encased in high-strength, aerospace-grade carbon fiber that is infused with a proprietary matrix resin Barrel twist rate - 1:8 Shank diameter - 1.20 inches Breech length - 2.5 inches