SKU: MS50299
UPC: 015813502993
MPN: 50299
The Mossberg 590 Mariner 12/20 8-round synthetic and pump-action shotgun is purpose-built for tactical, law enforcement, and home defense applications where reliability under extreme conditions is non-negotiable. This platform has earned trust across federal and local agencies for over three decades, and the Mariner variant specifically addresses the demands of marine, coastal, and corrosive-environment operators who require a shotgun that resists saltwater degradation.
The 8-round magazine tube capacity, which includes 7 rounds in the magazine and 1 in the chamber, paired with the pump-action mechanism delivers rapid follow-up shots and manual reliability independent of ammunition type or environmental stress. The Mariner's synthetic furniture eliminates wood rot and corrosion vectors while maintaining an overall weight of 8.5 lbs—critical for extended patrol or vehicle-mounted duty. The picatinny rail system accommodates tactical lights, optics, and aiming devices standard to modern law enforcement loadouts.
This shotgun is ideal for tactical teams, maritime units, and emergency responders who require a reliable firearm in challenging environments. Mossberg's legendary pump mechanism cycles 2.75" and 3" magnum loads indiscriminately, eliminating ammunition segregation in high-stress scenarios. The 42.75" overall length strikes the balance between maneuverability in confined spaces and sight radius accuracy demanded by urban and rural tactical operations alike.
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.
