Introducing the CMMG Banshee MK4, now available in more calibers than ever, including the potent .300 AAC Blackout. This AR-15 pistol is designed to deliver a thrilling shooting experience with a host of advanced features. At its core is a high-quality 4140 chrome moly steel barrel, ensuring exceptional accuracy. The barrel is treated with a salt bath nitride finish, enhancing durability and resistance to corrosion. Equipped with a pistol length gas system, the Banshee MK4 handles various .300 AAC Blackout ammunition types with ease. The MK4 lineup incorporates CMMG's Zeroed enhanced AR-15 parts, including an ambidextrous safety selector with adjustable throw angle and a new linear compensator at the muzzle end. These features are crafted to optimize ergonomics and ensure a comfortable shooting experience for shooters of all kinds.