Mossberg 590A1 12 Gauge | 18.5 in | 6+1 | 50793

The Mossberg 590A1 is a professional-grade pump-action 12 gauge built for durability and service-oriented applications. It features an 18.5-inch heavy-walled barrel finished in Marinecote, a black synthetic stock with an adjustable length-of-pull, and a 6+1 magazine capacity. Sighting options include a metal ghost-ring rear and a front fiber-optic sight, and the receiver is optic-ready for micro red-dot footprints.

Product Specifications

• The manufacturer is Mossberg.
• The model is 590A1.
• The gauge is 12 Gauge.
• The barrel measures 18.50 inches and is heavy-walled with a Marinecote finish.
• The action type is Pump Action.
• The chamber accepts 3 inch shells.
• The capacity is 6+1.
• The stock is black synthetic with an adjustable length-of-pull.
• The sights are a ghost ring rear with front fiber optic and the receiver is optic-ready.
• The finish is Marinecote to resist wet and humid environments.
• Additional features include a corncob forend and Professional Series construction.
• This model is commonly specified for law enforcement and professional use and for range training applications.
• Coloration is silver and black.
• The ATF manufacturer is listed as MOSSBERG and the ATF model is 590A1.
• UPC: 015813507936.

Built to Mil-Spec-derived standards, the 590A1 emphasizes robust components and serviceability for operational environments. Its Marinecote barrel and steel receiver resist corrosion in maritime and high-humidity settings, and the adjustable stock geometry helps tailor fit for different users. The optic-ready receiver and forgiving sighting package make this model practical for professional patrol use and structured training programs.

Users commonly praise the 590A1 for its military-grade durability and rock-solid reliability under repeated use.

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