$1,014.99
Out of stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
Mossberg took everything people loved about the 590 Shockwave and answered the one request that kept coming up: make it a semi-auto. The 990 AfterShock is the result, a 12 gauge with a 14.75 inch barrel, a bird's head style grip, and an overall length of just 27.125 inches. This version ships with a Crimson Trace Lasersaddle mounted right on the receiver, giving you a windage and elevation adjustable laser with multiple touchpad activation points. On a compact platform like this, where you're not getting a traditional cheek weld, that laser earns its keep in low light.
Under the forend sits a self-contained gas system built on the same design that made the 940 series a hit. It cycles fast, takes real bite out of the recoil compared to a pump gun in this format, and the internals are built to last. The gas piston, magazine tube, hammer, and sear all wear nickel boron coatings for corrosion resistance and smooth cycling. Capacity is 5+1 with 2.75 inch shells, and the 3 inch chamber gives you flexibility on load selection.
Mossberg didn't skimp on the details here. The loading port is enlarged and beveled with a pinch-free elevator and a bright orange follower, so topping off is quick even when your hands are moving fast. The charging handle is oversized and knurled, the bolt release is a big paddle style, and the ambidextrous tang safety has a clear red indicator. Up front, a fiber optic sight grabs light for quick target acquisition, and the strapped forend keeps your support hand planted and clear of the muzzle.
The magazine tube extension fixture includes M-LOK slots on the sides and bottom, so adding a weapon light or sling mount is simple. There's also a QD cup at the rear of the grip. For home defense, vehicle staging, or anyone who wants serious 12 gauge capability in the tightest package Mossberg makes, this one delivers.
The big difference is the action. The Shockwave is a pump gun, while the 990 AfterShock uses a gas-operated semi-auto system based on Mossberg's 940 series, so it cycles on its own and noticeably softens felt recoil. It keeps the same compact bird's head grip format that made the Shockwave so popular, just with faster follow-up shots.
Yes, this version (MPN 83003) ships with the Lasersaddle mounted to the receiver from the factory. The 5mW beam is adjustable for windage and elevation, and it has multiple touchpad activation points so you can hit it naturally from your firing grip. On a gun without a stock, it makes aiming in low light a whole lot more intuitive.
It has a 3 inch chamber and the gas system is designed to run a wide range of 12 gauge loads. Range reports consistently show reliable cycling with full-power defensive buckshot, which is what this platform was built around. Quality 2.75 inch defensive loads give you the full 5+1 capacity and a manageable recoil impulse.
You've got solid options. The magazine tube extension fixture has M-LOK slots on the sides and bottom for mounting a weapon light or QD sling socket, and there's a QD cup built into the rear of the grip. A light is a smart addition for a gun that will likely spend its life in a home defense role.
| UPC | 015813830034 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 83003 |
| Action | |
| ATF Type | Shotgun |
| Barrel Length | 14.75'' |
| Caliber/Gauge | 12 Gauge |
| Capacity | 5 |
| Chokes Included | Cylinder Bore |
| Color | Black |
| Length | 27.125'' |
| Magazine Included | 1 x 5-Round |
| Model | |
| Package Height | 2.7 |
| Package Width | 7.8 |
| Product Type | Shotgun |
| Safety | Ambidextrous |
| Shipping Weight | 7.9 |
| Sights | Fiber Optic |
| Sights Type | Fixed Sights |
You must be logged in to post a review.
Reviews
There are no reviews yet.