Mossberg 590A1 12 Gauge 20in Pump-Action Shotgun

About this product

The Mossberg 590A1 is a purpose-built 12 Gauge pump-action shotgun with a 20-inch heavy-walled barrel finished in Tungsten Cerakote. Designed for robust service use, this model features a black synthetic stock with spacers for adjustable length of pull and a corncob-style forend for secure handling. Sighting provisions include a ghost-ring rear sight paired with a front fiber-optic, providing quick, practical target acquisition in close to medium ranges.

Key Specifications

• The shotgun is chambered in 12 Gauge.
• The barrel measures 20 inches.
• The action is pump-action.
• The chamber accepts 3-inch shells.
• The finish is Tungsten Cerakote.
• The sighting system uses a ghost-ring rear and front fiber-optic sight.
• The stock is black synthetic with adjustable spacers.
• The forend is a corncob-style forend.
• The shotgun weighs approximately 7.25 lbs.
• Includes a cylinder bore choke and is Accu-Choke compatible.

Built to perform in demanding environments, the 590A1 combines straightforward manual operation with durable materials and practical sighting options. Its synthetic stock and corncob forend offer reliable ergonomics, while the Cerakote finish adds corrosion resistance for extended service life. The result is a dependable field-ready tool for users who prioritize rugged construction and simple, effective operation.

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