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

Nra Leaders Attend White House Event 1
Nra Leaders Attend White House Event 1

NRA Leaders Attend White House Dinner as President Trump Signs Orders Expanding Access to Public Lands and Waterways

NRA Executive Vice President and CEO Doug Hamlin and Institute for Legislative Action Executive Director John Commerford represented NRA members at a White House dinner hosted by President Donald J. Trump.

The America 250th Longrifle: Creating One Tribute to America's Semiquincentennial

As part of the America 250th celebrations this year, one longtime American Rifleman contributor had to have his own special tribute to our country's semiquincentennial.

The Long & Short of It: Rock Island Armory's Pak-Out Platform

One of the latest designs to come from Rock Island Armory is its Pak-Out, a folding shotgun that is offered in several different configurations.

Gun of the Week: The New Taurus Judge

For 2026, Taurus USA took a fresh look at one of its most popular platforms, the Judge revolver, and updated it with a new feature set while retaining the versatility that made it popular in the first place.

The Armed Citizen® Sept. 18, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

This Maryland County Moved to Disarm Jews and Others in the Face of Evil

Even given the unconscionable history of gun control, the law banning concealed carry in and within 100 yards of houses of worship and other public assemblies in Montgomery County, Md., is particularly disturbing.

Interests



Get the best of American Rifleman delivered to your inbox.