PROOF Research 138960 Pre-Fit Stainless Bolt-Action Barrel for SIG Cross, 1:8 Twist

Proof Research 138960 Bolt Action Barrel Pre-Fit 260 Rem 20" 1:8" Twist (5 Groove), 5/8"-24 tpi Threaded, Stainless Steel, Drop-In Design for Sig Cross

Upgrade your SIG Cross with the PROOF Research 138960 pre-fit bolt-action barrel, engineered for a straightforward drop-in installation. This replacement barrel is designed to eliminate the need to send your rifle away for a barrel change, helping qualified users complete the installation at home with the appropriate tools and procedures. Its pre-fit configuration is built for reliable compatibility and headspacing when used with the correct SIG Cross platform and installation instructions.
The barrel features a stainless finish for a clean, durable appearance and incorporates a 5-groove bore designed to provide consistent bullet engagement. Its 1:8 twist rate is suited to stabilizing a broad range of modern rifle projectiles, making it a practical choice for shooters seeking a versatile replacement or configuration upgrade. The bolt-action barrel design supports the precision-focused performance expected from PROOF Research components.
As part of the PROOF Research E X Tra Barrels line, this drop-in component offers a convenient alternative to traditional gunsmith-installed barrel changes. Always verify chambering, rifle compatibility, and headspace before installation or firing. Follow all manufacturer instructions and applicable firearm safety practices, and have the installation inspected by a qualified gunsmith if you are not fully familiar with barrel fitting and headspace verification. The PROOF Research 138960 is a purpose-built replacement option for SIG Cross owners who want a dependable pre-fit barrel solution from an established barrel manufacturer.

Features:

• Model: Bolt-action barrel

• Twist: 1:8

• Bore Type: 5-groove

• Finish: Stainless

• Barrel Type: Pre-fit

• Barrel Features: Drop-in installation

• Product Line: E X Tra Barrels

• Compatibility: Designed for the SIG Cross platform