Mossberg 590A1 | 12 Gauge | 20in | 51660

The Mossberg 590A1 is a duty-grade pump-action shotgun built to meet demanding service standards. This configuration includes a heavy-walled 20″ barrel, Parkerized metal finish and a black synthetic stock designed for durability in harsh environments. Intended for military and law-enforcement style duties, it is also appropriate for training and range use where rugged, service-oriented performance is required.

Product Specifications

• The manufacturer is Mossberg.
• The model is 590A1.
• The manufacturer part number is 51660.
• The UPC is 015813516600.
• The action type is Pump Action.
• The caliber/gauge is 12 Gauge.
• The barrel length is 20 inches.
• The barrel description is a heavy-walled barrel.
• The finish is Parkerized.
• The stock material and color are black synthetic.
• The overall length is 41 inches.
• The listed weight is 7.25 lbs.
• The sights are a bead front and fixed sighting arrangement.
• The included choke is a fixed cylinder bore.

Built for demanding service environments, the 590A1 combines straightforward pump-action operation with service-grade components for dependable handling and simple maintenance. Its heavy-walled barrel, Parkerized metalwork and synthetic furniture focus on durability and corrosion resistance, making this configuration a practical choice for agencies, training, and persistent range use. The 590A1’s uncomplicated controls and rugged construction appeal to shooters who prioritize longevity and reliable function over frills.

Owners and agencies commonly praise the 590A1 for its durability and duty-grade construction, and many note its reliable operation under heavy use.

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