The MK1 MOD 1-M line is built for performance, featuring the highly regarded PWS long stroke piston system, which delivers exceptional reliability and function. This proven system is trusted by PWS owners and continues to be a top choice for those who demand consistent, high-level performance. The rifle is equipped with a free-float M-LOK handguard and forward assist controls, providing flexibility and ease of use, while maintaining a true mil-spec design that appeals to both civilian shooters and law enforcement professionals. Constructed with fully forged upper and lower receivers, the MK1 MOD 1-M is a rugged, no-nonsense rifle designed to withstand the toughest conditions. It is a versatile, high-value option that combines reliability with superior craftsmanship, ensuring it can handle any challenge thrown its way. Whether you're in a tactical environment or on the range, the MK1 MOD 1-M is built to be relentless and unstoppable, making it the ideal tool for those who demand top-tier performance without compromise. The 9-3/4 inches .300 Blackout barrel is optimized for ammunition for excellent performance and reliability The barrel twist rate is 1:8, designed for optimal stability and accuracy with a wide range of bullet weights Muzzle velocity 2264 fps, providing high-speed rounds for better performance over distance PWS Triad 30 muzzle device, optimized for minimizing recoil and flash for improved accuracy and comfort PWS proprietary piston upper, T6 7075 forged, anodized, ensuring reliability and durability with a high-quality piston-driven operating system PWS M-LOK 6.9 inches handguard, offering a compact and durable solution for attaching accessories with an M-LOK system Radian Raptor ambidextrous charging handle, allowing for smooth, efficient operation from either side of the rifle