PROOF Research Sig Sauer Cross .308 Win 1:10 Carbon Fiber-Wrapped Pre-Fit Barrel

The PROOF Research® Sig Sauer® Cross .308 Win 1:10 Carbon Fiber Barrel 5/8x24 threads provide compatibility with your favorite barrel-mounted accessories such as muzzle brakes, flash hiders, and suppressors. Plus, this drop-in barrel features a 1:10 twist ratio for the ultimate precision with extremely durable carbon fiber construction and a proprietary matrix resin that offers superior heat dissipation and superior strength for long-lasting field use. Made in USA.