Proof Research 6mm ARC Stainless AR15 Barrel 14.5 Inch 1-7.5 Twist

The Proof Research 6MM ARC 1-7.5 Twist 14.5'' Stainless Steel Barrel delivers precision performance for AR-15 platforms with a stainless finish that combines durability and corrosion resistance for demanding field and range use. Crafted as a medium contour AR-15 barrel, it weighs approximately 2.25 lbs and features a 14.5 inch length paired with an intermediate gas system to balance recoil and reliable cycling with the ALM 6mm ARC cartridge. The 1-7.5 twist rate enhances stabilization of a wide range of 6mm ARC loads, making it an excellent choice for precision-oriented shooting, varmint to medium-game opportunities, and tactical applications where accuracy and consistency matter. Muzzle threads are 5/8-24 to accommodate a variety of flash suppressors or muzzle devices, while the stainless steel construction provides a consistent bore experience and straightforward maintenance. This Proof Research barrel integrates seamlessly with AR-15 receivers, offering predictable external dimensions and reliable fitment for builders and enthusiasts seeking a high-performance upgrade. Ideal for shooters pursuing tight groups, enhanced ballistic efficiency, and a robust platform for load development in 6mm ARC.