Proof Research Barrel Sig Sauer Cross Rifle Pre-Fit 6mm Creedmoor 20 1 in 7.5 Twist 4-Groove 5/8-24 Thread Carbon Fiber

Proof Research pre-fit carbon fiber & steel barrels are to be installed in a simple operation requiring few specialized tools. The pre-fit barrels are chambered and threaded for a simple install that requires only a few specialized tools. Simply torque your barrel on, double check headspace with proper gauges and head to the range! Unprecedented accuracy and performance – it does not get much better than Proof Research carbon fiber & steel pre-fit barrels.

Features

• Up to 64% lighter than traditional steel barrels of similar contour
• Improved heat dissipation for cooler and longer lasting barrels
• Wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin