Proof Research 138946 Bolt Action Barrel Pre-Fit 260 Rem 18 1:8 Twist (5 Groove), 5/8-24 tpi Threaded, Carbon Fiber, Drop-In Design for Sig Cross, Rifle Barrel

Overview

Proof Research pre-fit barrels are designed for the Sig Sauer Cross rifle, allowing for straightforward installation with the included barrel extension. The barrels combine aerospace-grade carbon fiber with double-stress relieved 416R stainless steel. The helical carbon fiber wrapping pattern improves thermal diffusivity along the length of the barrel to efficiently dissipate heat, helping the rifle maintain match-grade accuracy and durability over extended shooting sessions.

Price & Stock History

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