Proof Research Bolt Action Barrel 134474 18" Carbon Fiber 308 Win 1:10 Twist 5/8-24 Pre-Fit for Sig Cross

1) The Proof Research 134474 is a bolt-action, carbon fiber‐wrapped barrel engineered for direct, drop-in compatibility with the Sig Sauer Cross rifle, offering precision shooters a lightweight, high-performance upgrade in .308 Winchester.

• 18-inch length with 1:10" twist and 5/8"-24 threaded muzzle
• Carbon fiber wrap over steel for reduced weight and improved heat management
• Pre-fit design for straightforward installation on Sig Sauer Cross rifles

This barrel is manufactured for shooters seeking a reliable, accurate, and easy-to-install upgrade without the need for professional fitting.