SKU: MS50767
UPC: 015813507677
MPN: 50767
The Mossberg 590A1 M-LOK Mariner 12 gauge 18.5 inches pump-action shotgun is a purpose-built tactical platform trusted by law enforcement agencies and military units worldwide. Designed for close-quarters combat, breaching operations, and home defense, this shotgun delivers the reliability and ergonomic modularity demanded in high-stress environments. With a magazine capacity of 6+1, it provides ample firepower for various applications.
The 18.5-inch barrel provides an optimal balance between maneuverability and shot pattern control. Built on Mossberg's proven 590A1 platform, this Mariner variant features integrated M-LOK slots along the foregrip and receiver, enabling rapid attachment of tactical accessories without requiring dedicated picatinny rails or proprietary mounting systems. The pump-action cycling mechanism delivers consistent shot-to-shot reliability in adverse conditions, complemented by a cross-bolt safety that functions intuitively under stress.
This shotgun benefits operators, tactical teams, and civilian home-defense users seeking modular 12-gauge reliability without the complexity of semi-automatic systems. The M-LOK rail interface accepts modern vertical grips, light mounts, laser systems, and sling attachments, allowing customization for specific needs. The corrosion-resistant Mariner finish ensures durability in harsh marine or coastal environments, making it a reliable choice for various settings.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Mossberg
Mossberg
