Following on the unprecedented success of the Mossberg 590® Shockwave pump action, Mossberg is pleased to announce the all-new 990 Aftershock, a 12-gauge, 3-inch semi-auto version of this small in size, but big on performance tactical firearm. This full-featured and easy to maneuver platform is available with 14.75-inch or 18.5-inch barrel options and a 14.75-inch 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 forend. 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 forend 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 well-designed exterior of the 990 Aftershock epitomizes big tactical performance in a compact platform. The Aftershock black synthetic 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 forend 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-inch cylinder bore barrels equipped with a high-quality LPA front fiber optic sight; 5+1 total capacity (with 2.75-inch shotshells); and matte blue metal finish. The 14.75-inch 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.

Available models include:

(83001) 990 Aftershock 6-shot - 14.75 in

MSRP: $1,120

(83002) 990 aftershock 6-shot - 18.5 in

MSRP: $1,120

(83003) 990 AFTERSHOCK 6-SHOT Lasersaddle - 14.75 IN 

MSRP: $1,302

Mossberg continues to deliver innovation, reliability, and exceptional tactical performance with their lines of 590A1™/590 pump-actions and 940® Pro Tactical semi-autos. Now joining the family is the new 990 Aftershock - a premium defensive tool in a small package.  

Mossberg 990 Aftershock Semi-Auto Firearm Specifications: