Mossberg 590 Shockwave Now in 20 Gauge

by
posted on October 25, 2017
** 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. **
moss_lede_590-shockwave-600x140.jpg
One of the most talked-about firearms to come out of the 2017 SHOT Show was the Mossberg 590 Shockwave—a 12-gauge 14" barrel pump-action gun that does not require NFA paperwork. We've covered it extensively, and you can learn more about it here. One of the main questions folks have been asking since its introduction is, "Will it be offered in a 20-gauge model?" We now the answer: Yes, and they are already in production and shipping to wholesalers.

The 20-gauge version of the Shockwave required an engineering redesign, as this is Mossberg's first offering of the 590 in a smaller gauge. In addition to a scaled-down receiver, the cob-styled, tactical fore-end was reduced in overall size. The gun weighs in at a mere 4.95 lbs., has a 6-round capacity, and has an overall length of 26.4".

At the core of the 590 Shockwave is Mossberg's non-binding twin action bars, positive steel-to-steel lock-up, an anti-jam elevator, dual extractors and Mossberg's universally recognized, ambidextrous top-mounted safety. The lightweight receiver is constructed of anodized aluminum and is drilled and tapped for an optic or accessories. The magazine tube features a convenient clean-out cap. The gun is 2¾" and 3" capable and features a heavy-walled barrel with bead sight and matte blue finish. Rear and magazine cap sling swivel studs complete this compact package.

The "bird's head"-shaped pistol grip from Shockwave Technologies provides this 590 with its distinctive name. The Shockwave Raptor grip features an enhanced textured finish, allowing for maximum control while minimizing felt recoil. The grip is constructed of durable, glass-filled polymer with non-reflective, black finish and overall length of 5.25".

Specifications:
  • Type: 590 Non-NFA Pump-Action
  • Gauge/Chamber: 20-ga. 3"
  • Capacity: 6 shells
  • Barrel/Finish: 14.37" in Heavy-Walled Matte Blue
  • Sights: Bead
  • Chokes: Cylinder Bore
  • Overall Length: 26.37"
  • Fore-end/Stock/Finish: Shockwave Raptor Grip/Cob Fore-end with Strap/Black Synthetic
  • Approx. Weight: 4.95 lbs.
  • MSRP: $455

For more information visit mossberg.com

Additional Reading: 
Mossberg M590 Shockwave Review
Dressing Up the Mossberg 590 Shockwave
NRA Gun of the Week: Mossberg 590 Shockwave
Tested: Mossberg 590 Shockwave
Editors’ Picks 2017: Mossberg Shockwave
SHOT Show 2017: Mossberg 590 Shockwave

Latest

Beretta 1301 A300 Comparison 1
Beretta 1301 A300 Comparison 1

Beretta's 1301 Tactical vs. A300 Ultima Patrol Shotguns: Which Should You Choose?

Ever since Beretta launched the A300 Ultima Patrol shotgun in 2024 as a less-pricey alternative to the 1301 Tactical, shotgunners have debated whether the 1301 is worth the extra cost. Let's examine them both.

ZEV Technologies Escaping Washington State’s Hostile Political Climate

ZEV Technologies announced it is moving its headquarters and manufacturing operations out of Washington state to Utah’s Second Amendment-friendly business climate.

U.S. v. Hemani Arguments

On March 2, the U.S. Supreme Court heard oral arguments in U.S. v. Hemani. The case involves a defendant who is fighting a federal indictment for possessing a firearm while being a marijuana user.

Will Canada Attempt a Door-to-Door Gun Confiscation?

Whether, after Oct. 30, 2026, the federal government in Canada will escalate to door-to-door confiscation or whether they will be forced in the courts and legislatures to confront the failure of a policy that trades liberty for an illusion of control remains to be seen.

Rifleman Review: Federal 7 mm Backcountry

Unlike other recent cartridge launches, the key to Federal Ammunition's 7 mm Backcountry wasn't just in the design of the cartridge but also the type of material used in its case construction.

Big Bite in a Small Package: The Henry Repeating Arms Bear's Leg

Henry Repeating Arms is stepping up its lever-action game with the addition of its Bear's Leg design, a tactical lever-action that provides power and versatility in a compact platform.

Interests



Get the best of American Rifleman delivered to your inbox.