POTD: The Mossberg 590RM Breacher

Eric B
by Eric B

Photo Of The Day and we take a look at four images of the 590RM Breacher. This Mossberg shotgun features an ambidextrous AR-style rotary safety selector and comes with a 10-round detachable magazine. The 18.5-inch barrel includes an integrated heat shield, in case you decide to shoot a few more than one magazine.

The enlarged, beveled loading port with an exposed follower, will simplify your reloading. The flat-profile trigger is said to deliver a smooth, crisp break.

A 5-position adjustable stock includes an MOE pistol grip, an interchangeable recoil pad, and two QD ports. A top Picatinny rail accommodates AR-style optics.

It’s been ages since I shot any kind of shotgun at all, but I would certainly enjoy giving this one a try and see how it pumps. What kind of shotguns do you prefer? Pumps or semi-autos?


The shotgun is from O.F. Mossberg & Sons, Inc. and the images are from Gallery of Guns.

Eric B
Eric B

Ex-Arctic Ranger. Competitive practical shooter and hunter with a European focus. Always ready to increase my collection of modern semi-automatics, optics, thermals and suppressors. TCCC Certified. Occasionaly seen in a 6x6 Bug Out Vehicle, always with a big smile.

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  • Scott McGregor Scott McGregor on Dec 16, 2025

    I did some coyote hunting out of a helicopter with one of these, it was great, handles like an AR. The rotating safety and pistol grip are very intuitive. I traded the stock for a Magpul CTR and put a different grip on it. Both are AR based, put what you like on there.


  • Hatman1793 Hatman1793 on Dec 17, 2025

    I was astonished when Mossburg green-lighted a magazine fed shotgun. Definitely an interesting design application for a traditional shotgun. The AK shotgun goes one step further using a gas piston system making it S/A.

    Probably around the same price…..

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