Mossberg 590 Mariner | 12GA 20-inch Marinecote | 50299

The Mossberg 590 Mariner is a 12 gauge pump-action shotgun built with corrosion resistance in mind. It pairs a 20-inch Marinecote-finished barrel with a black synthetic stock and includes a pistol grip conversion kit. The Mariner’s finish and construction make it well suited for maritime or waterfront use and for routine range training where a durable, low-maintenance shotgun is required.

Product Specifications

• The brand is Mossberg.
• The model is 590 Mariner.
• The UPC is 015813502993.
• The gauge is 12 Gauge.
• The action type is Pump Action.
• The barrel measures 20 inches.
• The maximum chamber size is 3 inches.
• The factory choke is a cylinder bore.
• The barrel and receiver feature a Marinecote (silver) finish.
• The stock material is black synthetic.
• The package includes a pistol grip conversion kit.
• The safety is a ambidextrous top tang.
• The overall length is 41 inches.
• The unloaded weight is approximately 7 lbs.
• The sighting is a front bead.

Built for environments where corrosion resistance matters, the 590 Mariner combines Mossberg’s proven pump-action platform with Marinecote protection and a practical synthetic stock. The included pistol grip conversion kit provides an alternate ergonomics option, while the fixed bead sight and cylinder bore barrel keep the system simple and serviceable for routine practice and maritime use. Its solid, straightforward design makes it a practical choice for users who prioritize durability and low-maintenance operation.

Related Videos: