Proof Research Impact Precision 737R Carbon Fiber Prefit Barrel 6mm ARC 20" Sendero Contour 1:7.5" Twist 4 Groove

Overview

The Proof Research Impact Precision 737 prefit barrel is chambered in 6mm ARC with a 20-inch length and a 1:7.5-inch twist rate. It utilizes a Sendero contour and features a 4-groove rifling pattern. The barrel core is produced from double-stress relieved 416R stainless steel, which is then wrapped in aerospace-grade carbon fiber. Engineered for match-grade accuracy, this barrel utilizes a helical carbon fiber wrap that increases thermal diffusivity along the length and thickness of the barrel. This design allows for faster cooling and improved thermal consistency compared to standard steel barrels, making it ideal for maintaining accuracy during high-volume shooting sessions.

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