Product DescriptionThe Proof Research 157633 is a carbon fiber pre-fit barrel designed for bolt-action rifle builds chambered in .300 PRC. This 20-inch barrel features a Sendero profile and combines the stiffness and performance benefits of a precision barrel with the weight savings of carbon fiber construction. It is threaded 5/8x24 for compatibility with common muzzle devices and is built with a 1:9 twist rate to support modern .300 PRC projectile options. For shooters building or upgrading a precision rifle, this pre-fit barrel offers a premium option focused on accuracy, balance, and reduced carry weight.Product Highlights Premium carbon fiber pre-fit barrel from Proof Research for bolt-action rifle applications. Chambered in .300 PRC with a 20-inch length for a compact precision rifle setup. Sendero barrel profile offers a strong balance of rigidity and handling. 5/8x24 threaded muzzle supports brakes, suppressor mounts, and other compatible accessories. 1:9 twist rate is well-suited for stabilizing a wide range of modern .300 PRC bullets. Specs Brand: PROOF RESEARCH Manufacturer Part Number: 157633 Product Type: Pre-Fit Barrel Action: Bolt Caliber: .300 PRC Barrel Length: 20 in Barrel Description/Profile: Sendero Barrel Material: Carbon Fiber Twist Rate: 1:9 Thread Pattern: 5/8x24 UPC: 843068157633 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.