Mossberg 590A1 | 12 Gauge | 18.5 in | 6+1 | MFG# 50765

The Mossberg 590A1 (MFG# 50765) is a 12 gauge pump-action shotgun built around a heavy-walled 18.5 inch barrel and a synthetic tactical stock. It features a black Parkerized finish, an M-LOK forend and ghost-ring sights. The shotgun ships with a cylinder-bore tube installed and a tubular magazine that holds six rounds plus one in the chamber. Its design emphasizes robust steel components and straightforward, duty-oriented controls.

Product Specifications

• The firearm is chambered in 12 Gauge.
• The action type is a Pump Action system.
• The barrel measures 18.5 inches and is heavy-walled for durability.
• The magazine capacity is 6+1 (six in the tube, one in the chamber).
• The maximum chamber size is 3 inches.
• The barrel is described as a heavy-walled barrel.
• The shotgun is equipped with ghost-ring sights for fast target acquisition.
• The forend uses an M-LOK interface for accessory mounting.
• The stock is a black synthetic tactical-style stock.
• The safety is an ambidextrous top tang safety.
• The unloaded weight is listed as 7 lbs.
• The choke arrangement is an Accu-Choke system with a cylinder bore tube installed.
• The finish is Parkerized and major components are steel.
• The UPC for this item is 015813507653.

This 590A1 configuration targets users who need a straightforward, rugged pump shotgun with duty-oriented features. The M-LOK forend allows modern accessory options while the ghost-ring sights provide quick sighting for close-range work. It suits law enforcement/duty roles and range training where reliability and simple maintenance are priorities.

Owners commonly praise the 590A1 for its durability and reliability, and many users note appreciation for the M-LOK forend and ghost-ring sight combination for practical utility.

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