CMMG 22B8F8BAB Banshee MK4 9" Rifle

The CMMG 22B8F8BAB Banshee MK4 9" rifle represents a purpose-built platform for operators who demand compact firepower without sacrificing control or modularity. This 9mm rifle is engineered for close-quarters environments—vehicle interiors, building clearance, and tactical responses where length-of-pull and maneuverability define success. Whether deployed in professional law enforcement, military training, or civilian defensive applications, the Banshee MK4 bridges the gap between pistol-caliber carbines and full-sized rifle systems with precision-machined reliability.

The 9-inch barrel delivers controlled velocity while maintaining the subsonic characteristics that make 9mm ammunition ideal for suppressed fire—a critical advantage in tactical environments. CMMG's MK4 generation incorporates refinements in ergonomics, gas system tuning, and rail integration that reduce shooter fatigue and support modern optic mounting standards. At just 3.35 pounds unloaded, this compact rifle achieves the lightweight handling essential for rapid target transitions, yet maintains the mechanical advantage of a long sight radius and consistent trigger break over pistol platforms. The modular design allows for accessory customization, including the integration of suppressors, tactical lights, and precision optics without requiring gunsmithing.

This platform excels for operators running duty carbines in confined spaces, trainers requiring safe 9mm rifle training, and defensive shooters prioritizing shot placement and control over large-frame magnum power. The Banshee MK4 9" is compatible with standard AR-platform accessories and common 9mm ammunition types, making logistics simple and ammunition costs manageable compared to centerfire rifle systems. Installation requires no specialized tools—the modular construction supports field-stripping and maintenance protocols identical to standard AR systems, ensuring compatibility with existing operator skill sets and armorer knowledge.