Mossberg 50521 500 Special Purpose | 12 GA | 18″ Barrel

The Mossberg 50521 500 Special Purpose is a pump-action 12-gauge shotgun built on the proven Mossberg 500 platform. It features an aluminum-alloy receiver, twin action bars for smooth cycling, and a fixed synthetic stock with an included pistol grip kit. The 18″ vent-rib barrel and 5+1 capacity make it well suited to range training and security applications where a compact, reliable pump-action is preferred.

Product Specifications

• The manufacturer is Mossberg.
• The model is 50521 500 Special Purpose.
• The manufacturer part number is 50521.
• The action is Pump Action.
• The gauge is 12 Gauge.
• The capacity is 5+1.
• The chamber measures 3″.
• The barrel length is 18″.
• The barrel features a Vent Rib.
• The stock is Fixed with Pistol Grip.
• The receiver is made from aluminum alloy.
• The sights are Dual Bead.
• The safety is mounted on the Tang.
• The choke system is Accu-Set.
• The UPC is 015813505215.

The 50521 is designed for shooters who want a straightforward, serviceable pump platform. Its interchangeable-barrel design and simple controls make maintenance and customization manageable, while the included pistol grip kit provides a compact handling option for specific roles such as range training or security detail use.

Users frequently praise its reliability and versatility.