Mossberg Introduces the Box-Fed Model 590M

by
posted on January 22, 2018
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **

O.F. Mossberg & Sons, Inc., is kicking off the new year by introducing a detachable-box-magazine-fed version of the company’s venerable Model 590 pump-action shotgun: the Model 590M. Offered in two variants, one pairing a corncob fore-end with a bead front sight and the other featuring a tri-rail fore-end and ghost ring sights, the 590M is a 12 gauge that measures 39.5” long with an 18.5” barrel, and weighs 7 lbs., 12 ozs. The tri-rail model also comes with a barrel shroud and makes use of the Accu-Choke system.


The shotguns feed from Mossberg’s beefy new double-stack magazines that feature hardened steel feed lips, an anti-tilt follower and a removable floorplate for easy disassembly. The Model 590M ships with one 10-round magazine, however, five-, 15- and 20-rounders are also being offered aftermarket. As necessitated by the detachable magazine system, the guns can only feed and chamber 2¾” loads. A bilateral, steel magazine release is located just forward of the trigger guard and can be actuated by pressing inward. Other operating controls are found in the traditional locations for the 590: The action lock lever is located on the left side of the receiver behind the trigger guard, and a two-position safety is centered on the shotgun’s tang.



        

Offering a capacity of 10+1 12 gauge shells right out of the box, the Mossberg Model 590M packs a lot of firepower into a relatively compact and handy package. And, in addition to the far faster reload times possible with a box-fed shotgun compared to its tube-fed counterparts, the 590M also opens up the potentiality of carrying load-specific magazines—which will likely garner particular attention from law enforcement departments and hunters. For more on Mossberg’s new Model 590M, see American Rifleman's Joe Kurtenbach fire the shotgun during Industry Day at the Range ahead of the 2018 SHOT Show, visit mossberg.com, and look for a full report later this year in American Rifleman.




  




Latest

man inspecting a cartridge with a magnifying glass
man inspecting a cartridge with a magnifying glass

The Drawbacks of Being a Numbers-Oriented Gun Guy

Like any hobby or pastime that is in any way even vaguely related to machines or technology, firearms attract a (possibly) disproportionate number of “right-brained,” STEM-oriented personalities who like numbers.

First Look: MDT Hand Cannon Slingshot

Slingshots are fun, but they can also be a legitimate backup defensive tool—in 2023, a 13-year-old Michigan boy saved his 8-year-old sister from being kidnapped by using a $3 slingshot to fire a marble and a rock at the assailant, striking him in the chest and head.

The LCP Meets Magpul: Ruger's LCP Max with Magpul's EHG

Over the years, Ruger has enhanced its LCP with the introduction of the LCP II and LCP Max. New for 2026, Ruger is offering a new version of the LCP Max with the addition of a Magpul Enhanced Handgun Grip.

Review: 945 Industries Q.A.P. Series Off-Body Carry Bag

Off-body carry can be somewhat controversial, but choosing the right gear can go a long way toward successful carry. One good option is the Q.A.P. Series of bags from 945 Industries.

At 75, CCI is Offering Even More

In 2026, CCI Ammunition—formally Cascade Cartridge, Inc.—marks its 75th anniversary with a fitting tribute to innovation and American ingenuity.

Gun of the Week: Powder River Precision Rubicon Icon

Powder River Precision has taken the basic Ruger 10/22 rifle concept and enhanced it with its Rubicon Icon design.

Interests



Get the best of American Rifleman delivered to your inbox.