Mossberg Adds 20-Gauge Pump-Action to 590 Shockwave Series

by
posted on October 31, 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. **
mossberg590shockwave_20gauge_lead.jpg

One of the most talked-about shotguns this year has been the Mossberg 590 Shockwave—a 12-gauge, 14-inch-barreled pump-action shotgun that does not require NFA paperwork to purchase. Following the success of the 12-gauge Shockwave, the company recently announced the addition of a 20-gauge model. While both of these compact, lightweight shotguns are designed primary for home and camp defense, we think either would be just the ticket for fanning gobblers or serving as a close-range backup gun in case a coyote comes running into your lap during a calling setup.

Based on the 12-gauge pump-action 590 design, the 20-gauge version of the Shockwave required an engineering redesign. In addition to a scaled-down receiver, the cob-style, tactical fore-end was reduced in size. Weighing a mere 4.95 pounds, the 20-gauge Shockwave has an overall length of 26.4 inches and provides a 5+1 capacity.

At the core of the 590 Shockwave is Mossberg's non-binding twin action bars, positive steel-to-steel lockup, 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 20-gauge Shockwave features a 14-inch, cylinder-bore barrel and is chambered for 2 ¾- and 3-inch shells.

The Shockwave Raptor grip features a textured finish and allows for control while minimizing felt recoil. The grip is constructed of durable, glass-filled polymer with a non-reflective, black finish and an overall length of 5.25 inches. The 20-gauge 590 Shockwave has an MSRP of $455.

For more information, go to mossberg.com.

Latest

W H2026 04 Knowhow Tom@Jakehendecshunter19.30
W H2026 04 Knowhow Tom@Jakehendecshunter19.30

Turkey Decoys All Season Long

Opening day of turkey season was rainy and cold. However, thanks to scouting and trail cameras, Scott Haugen had a plan. Matter of fact, from the first day to the last, Scott has a way to set the decoys to bring the birds in. Curious? Read on for some great strategies.

New for 2026: Hornady .223 WSSM and .243 WSSM Superformance Varmint

Hornady has announced the availability of .223 WSSM 55-grain V-Max and .243 WSSM 75-grain V-Max loads in the Superformance Varmint line.

#SundayGunday: Benelli M4 EXT

On this week's #SundayGunday, we’re checking out a true stalwart of the firearms world, the Benelli M4. Long held in high regard by concerned citizens looking for a pedigreed self-defense shotgun, quite a few have been plugged to reduce capacity, and used in the turkey woods over the years, as a true multi-purpose scattergun. Why? Well, as it turns out, there is very little that separates a good defensive shotgun from a good turkey gun. Learn more about it in this exclusive video.

Roundup: Turkey Guns & Gear

Check out our roundup of the best new turkey guns and gear in 2026.

Recipe: Crispy Sticky Venison

This recipe is a great way to turn a simple venison roast into something that tastes as if it came from your favorite takeout place. The meat becomes tender on the inside and crisp on the outside, and the sticky sauce brings together sweet, salty and spicy flavors. Serve it over a bed of rice and watch it disappear.

Berger Announces New 300 PRC Hunting Ammunition

Berger has announced the addition of 300 PRC 217-grain Elite Hunter ammunition to its long-range Elite Hunter product line.

Interests



Get the best of American Hunter delivered to your inbox.