The PROOF RESEARCH carbon fiber .22 Cal rifle barrel is a top-tier enhancement for your firearm, accommodating a range of calibers with precision. Engineered by the experts at PROOF RESEARCH, these rifle barrels boast a lightweight and streamlined design, ensuring your firearm remains agile without the burden of extra weight. Built to withstand extreme temperatures, this barrel is your reliable companion in any environment, from scorching deserts to icy tundra's. Constructed from aerospace-grade materials, it offers unparalleled durability and resilience, making it a formidable alternative to traditional steel barrels. Elevate your shooting experience with the cutting-edge PROOF RESEARCH bolt-action rifle barrel, where innovation meets performance. 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 1:8.4 barrel twist rate Shank diameter - 1.20 inches Breech length - 2.5 inches