Mossberg 590A1 M-LOK Mariner 12 Ga 18.5in Pump Shotgun
Specs at a glance
About this product
The Mossberg 590A1 M-LOK Mariner is a 12 Gauge pump-action shotgun built for reliable duty use in maritime and defensive environments. It features an 18.5-inch heavy barrel with a 3-inch chamber and bead sights for straightforward aiming. The firearm includes an M-LOK forend and a black synthetic stock finished in Marinecote for enhanced corrosion resistance. The design emphasizes robust operation and easy maintenance in corrosive conditions.
Key Specifications
- Model designation is 590A1.
- Chambered in 12 Gauge.
- Barrel length is 18.5 inches for compact handling.
- Barrel type is a heavy barrel profile for durability.
- Chamber size supports 3-inch shells.
- Action is pump action.
- Finish is Marinecote for enhanced corrosion resistance.
- Stock is black synthetic.
- Forend features M-LOK attachment slots.
- Sights are a simple bead configuration.
The 590A1 M-LOK Mariner pairs corrosion-resistant finishes, a rugged heavy barrel and a modular M-LOK forend to serve in maritime, security and defensive roles where dependable performance matters. Its straightforward pump-action operation and synthetic furniture make it easy to maintain and operate under demanding conditions. For shooters who prioritize durability, simplicity and functional features, this model provides a practical, mission-focused platform.
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