Mossberg 50521 500 Special Purpose 12 Gauge 18″ Barrel

The Mossberg 50521 500 Special Purpose is a compact, utility-oriented pump-action shotgun built for reliability and low maintenance. Designed around a user-friendly layout, it suits security and general-purpose applications where a short-barrel, maneuverable shotgun is required. The model includes a pistol grip kit and synthetic furniture for durable, weather-resistant handling.

Key Specifications

• The gauge is 12 Gauge.
• The capacity is 5 + 1.
• The barrel measures 18 inches and features a vent rib.
• The chamber accepts 3" shells.
• The action type is Pump Action.
• The receiver is constructed from aluminum alloy.
• The included choke configuration is Fixed Cylinder and the choke system is Accu-Set.
• The overall length is 39.50 inches.
• The unloaded weight is approximately 7.50 lbs.
• The safety is a Tang safety and the sights are Dual Bead.

Purpose-built and straightforward, the 50521 Special Purpose combines a short, maneuverable barrel and simple pump operation with durable synthetic furniture and an aluminum receiver to reduce weight. Accu-Set chokes and a fixed pistol-grip configuration make it practical for users who need a compact, dependable shotgun platform for security, utility, or close-range applications.