The Mossberg 590 Shockwave in 12 gauge (brand part no. 50648) is a pump-action firearm built around a 14.375-inch heavy-walled barrel with a heat shield, giving shooters a durable, compact platform for rapid strings of fire. Mossberg finishes the Shockwave in matte blue and equips it with a Raptor grip and corn-cob forend with strap. Because it ships without a shoulder stock, the Shockwave is classified by the ATF as a firearm rather than a shotgun; no NFA paperwork or tax stamp is required, only a standard FFL transfer. Among pump-action shotguns in the pump-action shotguns category, this Shockwave favors shooters who want the heat-shielded heavy-walled barrel for extended strings of fire.

Key Specifications

• Chambered in 12 gauge with a 3-inch chamber.
• Operates as a pump-action firearm.
• Features a 14.375-inch heavy-walled barrel with a heat shield.
• Overall length is 26.37 inches.
• Feeds from a tubular magazine with a 5+1 capacity.
• Runs an ambidextrous top-tang safety.
• Equipped with a fixed bead sight.
• Includes a Cylinder Bore choke.
• Finished in matte blue.
• Classified by the ATF as a firearm, not a shotgun, due to its lack of a shoulder stock.

Frequently Asked Questions

Why does it have a heat shield? The heavy-walled barrel is built for extended strings of fire, and the heat shield protects the forend hand from barrel heat.

Does this require a tax stamp? No, it ships with a standard FFL transfer; it is classified as a firearm rather than a shotgun, but no NFA paperwork is required.

Buy the Mossberg 590 Shockwave Saddle Mount

A heat-shielded heavy-walled barrel for extended strings of fire is exactly what this Shockwave delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.