Proof Research 6.5 PRC Lone Peak Pre-Fit Carbon Fiber Barrel

The Proof Research 6.5 PRC Lone Peak was designed for the enthusiast that wants extreme accuracy, performance and durability. Compatible with Fuzion, Fuzion Ti, Razor & Razor Ti actions from Lone Peak Arms. The barrel arrives chambered/threaded and ready to be installed in a simple operation that requires few specialized tools. Simply torque the barrel on using the proper action wrench and torque setting, double check headspace with proper gauges, and head to the range.

Disclaimer: Some older actions (made before Fall 2019) do not have timed threads and headspace may vary slightly. It is recommended to double check headspace after the barrel is installed. Due to variance in actions we do not guarantee the timing and alignment of the barrel engraving to your stock line.

Proof Research 6.5 PRC Lone Peak Pre-Fit Carbon Fiber Barrel Features


Up to 64% lighter than traditional steel barrels of similar contour.

Extreme Temperature Resistance

Improved heat dissipation for cooler and longer lasting barrels.

Unprecedented Durability

Wrapped with high strength, aerospace grade carbon fiber impregnated with a proprietary matrix resin.

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Proof Research 6.5 PRC Lone Peak


Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight
133323 24″ 7.5 5/8-24 Sendero 3lbs 0oz
133378 26″ 7.5 5/8-24 Sendero 3lbs 3oz


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Additional information

Weight N/A
Barrel Length

24" 133323, 26" 133378


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