New Guns 2025: Mossberg 990 Aftershock

The 990 Aftershock is a 12-gauge, 3” semi-automatic version of Mossberg's 590 Shockwave tactical firearm introduced in 2017.

by posted on April 22, 2025
** 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. **
Mossberg 990 Aftershock Angled

Mossberg has announced the all-new 990 Aftershock, a 12-gauge, 3” semi-automatic version of the 590 Shockwave tactical firearm introduced in 2017. This platform is available with 14.75” or 18.5” barrel options and a 14.75” version equipped with a Crimson Trace Lasersaddle.

At the heart of the 990 Aftershock is a durable gas-operating system that is fully contained within the fore-end. Internal parts (gas piston, magazine tube, hammer and sear) feature a nickel-boron coating and a special finish for enhanced corrosion resistance and smooth, reliable cycling. To further improve performance, the 990 has an enlarged and beveled loading port designed for ease of loading; elongated, pinch-free elevator; and anodized, bright orange follower. The oversized, ergonomic top-mounted safety can easily be operated by a left- or right-handed shooter and features a highly visible red indicator. Enhanced functionality continues with the knurled charging handle; oversized, paddle-style bolt release; strapped fore-end for a firm hold and to keep hands clear of the muzzle; and a M-LOK accessory adaptor with mounting slots on the sides and bottom attached to the extended 5-shot magazine.

The 990 Aftershock’s exterior emphasizes its purpose of tactical performance in a compact platform. The black synthetic Aftershock grip is uniquely shaped for an ergonomic, secure grip and features a rubberized palm pad to minimize felt recoil. A quick-detachment cup is incorporated on the rear of the grip. The matching black synthetic fore-end is streamlined, has an attached embossed strap, and wears Mossberg’s signature texturing, all combined for a more positive hold. Completing the 990 is the choice of 14.75” or 18.5” cylinder bore barrels equipped with a high-quality LPA front fiber optic sight; 5+1 total capacity (with 2.75” shotshells); and matte blue metal finish. The 14.75” version is also available with a Crimson Trace Lasersaddle which attaches easily to the receiver. The laser is adjustable for windage and elevation, and the fixture provides multiple touchpad activation points.

For more, please visit mossberg.com.

Latest

Melloni Fathers Day Gift Guide Lede
Melloni Fathers Day Gift Guide Lede

Delights for Dad on Father’s Day

Whether Dad is a dedicated hunter, competitive shooter, avid reloader or simply enjoys spending time outside, here's a selection of products that is sure to please.

4 Gun Sayings That Are Absolutely True … and 3 That Aren’t

There are a lot of cliches and one-liners we throw around in the gun community. Some of them are true, but some are just baloney.

How to Have a Wild—but Safe—Time in America's National Parks

Our national parks are the envy of the world, but you must responsibly navigate these three outdoor hazards to stay safe during your visit: wildlife, weather and geological features.

The Armed Citizen® Reload June 12, 2026

One man's idea of brotherly love didn't exactly align with his sister's philosophy.

Sally Talbott Earns High Woman Honors at 2026 CMP Bianchi Cup

Talbott, a member of Team Accuracy X and a former member of the U.S. Army Marksmanship Unit Service Pistol Team also earned Open .22 Champion honors and finishing 2nd overall in the Open Division.

Team Remington's Madison Sharpe Wins Top Honors at the 2026 Southeast Regional Championships

Team Remington’s Brandon Powell also won his second consecutive NSCA regional championship.

Women's Interests



Get the best of NRA Women delivered to your inbox.