Mossberg 590M Shockwave Breacher 12 Gauge Pump-Action Shotgun

Product Description

The Mossberg 590M Shockwave Breacher is a 12 gauge pump-action shotgun with a 14″ barrel and a 10+1 round capacity. Overall length is 26.5″. It has a black finish, a synthetic stock and a bead sight.

What sets it apart

This model feeds from a detachable box magazine, and the magazine tube is a clean-out design. The Breacher barrel carries a Cylinder choke and the chamber takes 2.75″ shells. The forend has a matte rail, and the gun is drilled and tapped for mounting accessories. It is listed as non-NFA.

The 590M Shockwave Breacher suits someone who wants a short 12 gauge that is easy to store and move around in tight spaces. That makes it a fit for home defense, a vehicle gun or a range toy for people who like compact shotguns. The pump action is simple to run, and the box magazine gives you a fast way to reload.

For gear, start with 2.75″ 12 gauge shells and extra magazines. A sling, a weapon light and a padded case are the usual add-ons. If you plan to add an optic or other mount, check that it fits the drilled and tapped receiver before you order. Because a Cylinder choke has no constriction, patterning your chosen load at the distances you expect to shoot is a smart first range trip.

Mossberg 590M Shockwave Breacher 12 Gauge Pump-Action Shotgun Specifications

What’s in the Box

1 Magazine (per the manufacturer’s listing).

Fits and Pairs With

• Winchester Repeating Arms Steel Hex 12 Gauge Ammo, 100 Rounds, SHS123BBVP
• Winchester Repeating Arms Steel Hex 12 Gauge Ammo, 100 Rounds, SHS1233VP
• Winchester Repeating Arms Steel Hex 12 Gauge Ammo, 100 Rounds, SHS1232VP
• Winchester Repeating Arms High Brass 12 Gauge Super-X Ammo, 100 Rounds

Ordering from Western Sport

Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.

Frequently Asked Questions

Q: Is the Mossberg 590M Shockwave Breacher an NFA item?

A: No. It is listed as non-NFA. Your local FFL will still handle the transfer as they would any firearm.

Q: What shell length does the 590M Shockwave Breacher chamber?

A: 2.75 inches. It is a 12 gauge with a 2.75" chamber.

Q: How many rounds does the Mossberg 590M Shockwave Breacher hold?

A: 10+1 rounds. It feeds from a detachable box magazine.

Q: What choke does the 590M Shockwave Breacher have?

A: Cylinder. The 14" Breacher barrel is listed with a Cyl choke.

Q: Is the 590M Shockwave Breacher drilled and tapped?

A: Yes. It is drilled and tapped, and the forend has a matte rail.

Warranty and Manufacturer

Covered by the Mossberg factory warranty; warranty terms come from Mossberg.

Additional information