Mossberg Launches Mag-Fed 590 Pump-Action Shotgun

“Magazine-fed shotguns have a couple of advantages over other styles,” said Todd Woodard, editor of Gun Tests Magazine. “High-capacity shotguns like the Kel-Tec KSG and even pumpguns with extended magazine tubes tend to have balky handling. That is, they’re slow to bring on target because of their mass and bulk. We have tended to prefer magazine-fed models in past tests because the weight of the shotgun, such as a mag-fed Saiga, is closer to the shooter’s body and between his hands. The Mossberg 590M seems to be poised to take advantage of that design difference.”

The 590M will initially be offered with a double-stack, 10-round shotgun magazine, Woodard said. Optional 5-, 10-, 15-, and 20-round capacity magazines will be sold as accessories.

Mossberg pump shotguns have a mixed record in hardnosed comparisons in Gun Tests, Woodard said, and those tests can be viewed here, here, and here. Many of the features of the existing 590 line will be carried over to the new model, including twin action bars, anti-jam elevator, dual extractors, anodized aluminum receiver drilled and tapped for optics, heavy-walled barrel, cleanout magazine tube; and an ambidextrous top-mounted safety. With the included 10-round magazine, these 12-gauge 2.75-inch pump-actions have a total round capacity of 10+1.

The double-stack magazine is constructed with hardened-steel feed lips, over-molded steel shell ramps and an anti-cant, rounded follower to ensure reliable feeding, Woodard said. Also, the magazine body is made of a proprietary self-lubricating polymer and has a heavy-duty ASTM-A-228 music-wire magazine spring for long life.

Also, the removable magazine floor plate allows for easy cleaning and a durable black oxide finish coats the steel components.

“Also,” Woodard said, “the proprietary double-stack magazine provides greater capacity in less magazine length versus a single-stack magazine.”

The first two models are as follows:

590M Mag Fed 10-Round (50205) – Comes with an 18.5-inch, heavy-walled cylinder bore barrel; bead sight; black synthetic stock and forend; matte blue metal finishes; and 10-round, double-stack magazine. MSRP: $721

590M Mag Fed Tri-Rail 10-Round (50206) – Comes with a Tactical Tri-Rail forend with full-length bottom rail and dual side rails for easy attachment of lights and accessories; 18.5-inch heavy-walled barrel with interchangeable ACCU-CHOKE™ choke tube system (cylinder bore tube included); protective heat shield; Ghost-Ring sight; black synthetic stock and forend; matte blue metal finishes; and 10-round, double-stack magazine. MSRP: $801

Mossberg 590M Mag-Fed Pump-Action Shotgun Specifications:

Mossberg 590M Mag-Fed Accessory Magazines Specifications: