Mossberg 51608 590S Compact 12 Gauge 3" 10-Round Pump-Action Shotgun

The Mossberg 590S Compact 12 Gauge 3" 10-Round Pump-Action Shotgun is a purpose-built platform designed for law enforcement, military, and civilian defensive use where reduced overall length and maneuverability are mission-critical. This compact pump shotgun delivers the proven reliability of Mossberg's 590 lineage in a configuration optimized for close-quarters engagement, vehicle deployment, and breaching operations where full-size shotguns prove unwieldy. The 10-round capacity provides substantial firepower while maintaining a compact footprint that fits tactical applications where space constraints and rapid target acquisition demand a balance of capacity and handling.

Built on Mossberg's time-tested pump-action mechanism, the 590S features a dual-action slide bar assembly that cycles 2.75" and 3" ammunition interchangeably without adjustment or tool changes—a critical advantage in field conditions where ammunition standardization may vary. The 10-round magazine tube extends only marginally beyond the 9-pound weight distribution, keeping the shotgun balanced and controllable during extended shooting strings or tactical movement. The compact 43-inch profile reduces overall length by approximately 3 inches compared to standard 590 models, directly improving maneuverability in confined spaces such as vehicles, buildings, or narrow tactical corridors without sacrificing the durability and corrosion resistance inherent to Mossberg's traditional construction standards.

This shotgun serves best in professional tactical roles—SWAT breaching teams, correctional facility deployment, armed security, and home-defense scenarios where compact length does not compromise capacity or reliability. The 12-gauge chambering in 3" accepts the full spectrum of commercial 12-gauge ammunition, from buck shot to slugs, without platform changes, ensuring operational flexibility across threat scenarios. Compatibility with standard Mossberg 590 accessories and rail-mounting systems allows integration with modern optics, lights, and laser systems, enabling shooters to configure this compact shotgun to match specific mission profiles while maintaining the legendary simplicity of pump-action operation under stress.