CMMG Banshee Mk9s 9mm 5" 30+1 AR Pistol

The CMMG Banshee Mk9s 9mm 5" AR Pistol is a modern, highly controllable platform purpose-built for shooters who demand AR ergonomics in a compact, maneuverable package. This variant chambers 9mm Luger, offering shooters the advantages of reduced recoil, lower ammunition costs, and easier follow-up shot placement compared to traditional rifle calibers—without sacrificing the iconic AR control scheme that law enforcement and military personnel rely on. The 5-inch barrel and AR pistol configuration make this platform ideal for close-quarters engagement, vehicle operations, and situations where a full-size rifle is impractical.

Built on the proven Banshee platform, the Mk9s leverages CMMG's engineering expertise in direct-impingement AR design optimized for pistol-caliber carbine performance. The 5-inch barrel delivers consistent velocity and accuracy at tactical ranges while maintaining a 13.5-inch overall length—critical for shooters operating in confined spaces or from vehicles. Weighing 8.6 pounds, the platform remains balanced and manageable during extended engagement, and the 30+1 round capacity with standard GLOCK-compatible magazines delivers substantial firepower without the weight penalty of rifle-caliber alternatives. The AR pistol format retains all standard AR controls and accessory compatibility, allowing seamless integration of optics, lights, and rail-mounted systems.

Operators in law enforcement, private security, and firearms enthusiasts benefit most from the Banshee Mk9s's accuracy, speed, and modularity. The platform accepts aftermarket AR furniture, handguards, and optic mounts without modification, making customization straightforward. 9mm ammunition availability and cost-effectiveness make this pistol ideal for training-heavy units and private shooters seeking reliable performance without depleting ammunition budgets. The 30+1 capacity combined with the platform's controllability ensures effective engagement capability for home defense, vehicle-mounted operations, and scenarios where intermediate firepower bridges the gap between a handgun and a full-rifle platform.