Maxim Defense MXM48172 CPS MD9 5.5" Carbine

The Maxim Defense MXM48172 CPS MD9 5.5" Carbine represents a purpose-built platform for operators and tactical professionals who demand compact firepower without sacrificing controllability. Chambered in 9mm Luger, this carbine bridges the gap between duty pistols and full-size rifles, offering superior velocity, accuracy, and ergonomic control in confined spaces—ideal for vehicle operations, close-quarters training, and specialized law enforcement deployments. At 7.74 lbs, it remains manageable for extended carry while maintaining the rigidity required for precision shooting.

The 5.5-inch barrel optimizes velocity and dwell time for reliable ammunition cycling across commercial and duty loads, while the Maxim Defense CPS (Continuous Platform System) receiver ensures modularity for future customization and accessory integration. The MD9 designation confirms this platform's 9mm optimization—meaning bolt, magazines, and feeding geometry are engineered specifically for this caliber. The compact 12-inch overall length (in its storage configuration) makes this carbine deployable from vehicles, bags, and tight tactical spaces without the weight penalty of intermediate cartridges or the logistical burden of dedicated ammunition stocks separate from your primary duty weapon.

This platform excels for law enforcement agencies, tactical teams, and civilian operators who standardize on 9mm ammunition for cost efficiency and logistics. Installation requires no gunsmithing—standard AR-pattern assembly and takedown procedures apply. Compatibility with standard 9mm Luger loading data and common duty ammunition makes this carbine immediately operational without inventory complications. The 23-inch height profile and balanced weight distribution support prolonged shooting sessions and dynamic CQB scenarios where sight picture and rapid target acquisition are mission-critical.