PROOF Research 138939 Carbon Fiber Pre-Fit Barrel for SIG Cross, .260 Remington, 16-Inch, 1:8 Twist

Proof Research 138939 Bolt Action Barrel Pre-Fit 260 Rem 16" 1:8" Twist (5 Groove), 5/8"-24 tpi Threaded, Carbon Fiber, Drop-In Design for Sig Cross

Upgrade your SIG Cross bolt-action rifle with the PROOF Research 138939 carbon fiber pre-fit barrel chambered in .260 Remington. Designed as a drop-in replacement, this barrel is engineered to provide a straightforward installation option for qualified users without requiring traditional gunsmith fitting. Its pre-fit configuration is designed to headspace correctly when installed according to the manufacturer’s instructions, helping streamline the barrel replacement process at home.
The PROOF Research 138939 features a 16-inch barrel length, a 1:8 twist rate, and a five-groove bore. The .260 Remington chambering offers a practical balance of ballistic performance and manageable recoil for compatible applications. The carbon fiber finish delivers a distinctive appearance while supporting a lightweight configuration, making this barrel a useful choice for shooters who want to refresh or customize their SIG Cross without sending the rifle away for service.
As part of PROOF Research’s E X Tra Barrels line, this model is built for users seeking a purpose-specific replacement barrel with dependable fitment and consistent construction. Verify your rifle model, chambering, and installation requirements before purchase. Always follow safe firearm handling practices, confirm the rifle is unloaded, and carefully follow all manufacturer instructions during installation and inspection. The PROOF Research 138939 is intended for use with compatible SIG Cross rifles and should be installed and checked by a qualified person when necessary.

Features:

• Brand and Part Number: PROOF Research 138939

• Compatibility: SIG Cross bolt-action rifle

• Caliber: .260 Remington

• Length: 16 inches

• Model: Bolt-action barrel

• Twist Rate: 1:8

• Bore Type: Five-groove

• Finish: Carbon fiber

• Barrel Type: Pre-fit

• Barrel Features: Drop-in design

• Product Line: E X Tra Barrels