Mossberg 590 Shockwave 12 Gauge Pump-Action, 14.375" Barrel, 5+1 Capacity, Matte Blued
The Mossberg 590 Shockwave takes the proven 590 action and pares it down to a compact 14.375-inch, heavy-wall barrel with a 26.37-inch overall length—classifying it as a “firearm” under BATFE guidelines rather than a traditional shotgun. Chambered for both 2¾" and 3" 12-gauge shells, it delivers full-size 590 durability in a maneuverable package that’s easy to store and quick to deploy.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: This firearm shows minimal markings from previous handling. The bore remains bright and clean.
What's Included
- Mossberg 590 Shockwave 12 Gauge firearm (Part No. 50659)
The Shockwave’s heavy-wall, cylinder-bore barrel is cut to 14.375 inches, giving you spread-friendly patterns while keeping the overall length under 27 inches. Dual action bars and a steel bolt come directly from the mil-spec 590 lineage, ensuring reliable cycling with both light and heavy loads.
The matte blued finish on the barrel pairs with a black anodized aluminum receiver that is drilled and tapped, making it easy to mount optics or a rail without gunsmith work. A tang-mounted safety allows fast, ambidextrous operation—especially useful when the bird’s-head grip keeps your hand well behind the receiver.
Control is further enhanced by the ribbed corn-cob forend, secured by a nylon strap that helps prevent hand slip during rapid pumping. Magazine capacity is 5+1 with 2¾" shells; 3" shells fit as well, giving users flexibility in load selection.
The Shockwave Technologies Raptor bird’s-head grip and matching polymer forend are lightweight yet rugged. Combined with the aluminum receiver, they keep overall weight manageable while maintaining the robust feel expected from a 590-series firearm.




