Mossberg 590A1 12 Ga 18.5in Parkerized M-LOK

The Mossberg 590A1 is a Mil-Spec pump-action 12 Gauge built with heavy-walled barrel construction and duty-oriented features. It ships with an 18.5-inch heavy-walled barrel, a Parkerized finish, an M-LOK forend and ghost ring sights. The design emphasizes durability and reliable operation for hard-use applications.

Key Specifications

• The gauge is 12 Gauge.
• The action type is Pump Action.
• The barrel measures 18.5 inches and is heavy-walled.
• The chamber accepts 3" ammunition.
• The metal finish is Parkerized.
• The stock is black synthetic with an M-LOK forend.
• The installed sights are ghost ring style.
• The included choke is cylinder bore (Accu-Choke system).
• The safety is an ambidextrous top tang.
• The listed weight is approximately 7 lbs.

Purpose-built for demanding environments, the 590A1 pairs robust Mil-Spec components with modular M-LOK accessory compatibility to support a range of defensive and duty applications. Its heavy-walled barrel, steel-to-steel lockup and reinforced controls prioritize longevity and consistent function, making it a sensible choice for users who require a straightforward, serviceable shotgun platform.