Proof Research 134559 Bolt Action Barrel Pre-Fit 6mm Creedmoor 20 1:7.50 Twist (4 Groove), 5/8-24 tpi Threaded, Carbon Fiber, Drop-In Design for Sig Cross, Rifle Barrel

Overview

The Proof Research pre-fit barrel is custom-designed for the Sig Sauer Cross rifle platform in 6mm Creedmoor with a 20-inch length. Featuring a matte black carbon fiber wrap over a match-grade 416R stainless steel core, it achieves significant weight reduction while maintaining exceptional stiffness and strength. The aerospace-grade helical carbon fiber wrap is engineered for superior thermal conductivity, efficiently dissipating heat away from the bore to prevent insulation, cool faster, and maintain accuracy during extended strings of fire. Each pre-fit barrel includes an integrated barrel extension for straightforward installation and effortless caliber switching.

Price & Stock History

Listings