The CMMG Banshee Mk4 9mm series includes a range of compact, high-performance AR pistols designed for versatile use in personal defense, tactical applications, and competitive shooting. Key variants feature 5-inch or 8-inch barrels, with a Radial Delayed Blowback system that enhances shooting comfort by reducing recoil and bolt weight. These models utilize AR15-style controls and a 9mm conversion magazine system, allowing compatibility with converted AR magazines, enhancing versatility and ease of use. The Banshee Mk4 9mm pistols are also equipped with ZEROED components, including an ambidextrous safety, drop-in trigger, extended mag release button, and an ambi charging handle. Available in a wide variety of Cerakote finishes, such as Armor Black, Charcoal Green, Coyote Tan, and Tungsten, the Banshee Mk4 9mm offers a customizable look while providing a durable finish for rugged use. The EML handguard with M-LOK slots and full-length Picatinny top rail allows for extensive accessory attachment options, making these pistols highly adaptable for various shooting setups. Additionally, each model comes with the CMMG RIPBRACE or tube and includes a 30-round magazine in unrestricted states, rounding out the Banshee Mk4 9mm as a practical, high-quality choice for a compact 9mm AR-platform pistol.