Introducing the CMMG Banshee MK4, now available in more calibers than ever, including the potent .300 AAC Blackout. This AR-15 pistol is crafted for exceptional performance and fun on the range. At its core is a high-quality 4140 chrome moly steel barrel, renowned for its accuracy and durability, featuring a salt bath nitride finish for enhanced longevity and resistance to corrosion. Equipped with a pistol-length gas system, the Banshee MK4 effortlessly handles various .300 AAC Blackout ammunition types. Updated with CMMG's Zeroed enhanced AR-15 parts, this pistol includes an ambidextrous safety selector with adjustable throw angle and a new linear compensator at the muzzle. These features ensure ergonomic shooting comfort for a diverse range of shooters. The CMMG Banshee MK4 in .300 AAC Blackout represents a pinnacle of versatility and performance in AR-style pistols, designed to deliver a thrilling shooting experience with uncompromising reliability.