Proof Research barrels represent the pinnacle of firearm engineering and a relentless pursuit of ballistic excellence. Whether you are a competitive shooter or a backcountry hunter, you can expect the finest rifle barrel in the industry, designed for unmatched performance. Each Carbon Fiber barrel begins with a match-grade 416R stainless steel blank, manufactured in-house to exacting standards. By reducing the steel to a slim profile and wrapping it in high-strength, aerospace-grade carbon fiber, Proof Research significantly slashes weight without sacrificing rigidity. Utilizing a proprietary matrix resin from their Advanced Composites Division (ACD), these barrels offer superior thermal management; the carbon fibers act as a heat sink, diffusing energy and increasing heat transport through the barrel wall. This results in a lightweight precision barrel that is stronger, more durable, and just as accurate as traditional heavy-contour steel. Experience the evolution of the precision rifle with a barrel built to thrive in the most demanding environments.