Mossberg M990 Aftershock Green Crimson Trace Laser Saddle Shotgun 12ga 3" Chamber 5rd Capacity 14.75" Barrel NON-NFA

The Mossberg M990 Aftershock is a compact 12-gauge semi-auto shotgun built for shooters who need tactical performance in a maneuverable package. Chambered in 3" with a 14.75" barrel and 5-round capacity, this non-NFA shotgun pairs gas-system reliability with the added precision of an integrated Crimson Trace laser saddle—ideal for home defense, tactical training, or hunting situations where quick target acquisition matters. The Aftershock's tight overall footprint makes it one of Mossberg's most agile semi-auto shotguns without sacrificing the controls and ergonomics serious shooters expect.

Inside the 990, you'll find durability engineered for hard use. The gas piston, magazine tube, hammer, and sear all feature nickel-boron coating to resist corrosion. The loading port is enlarged and beveled to speed up reloading during practice or in the field, and the anodized orange follower and elongated, pinch-free elevator make the gun pleasant to feed, even under stress. All that adds up to smooth, reliable semi-auto operation through whatever ammunition you're running.

Tactically, the M990 Aftershock doesn't cut corners. The Crimson Trace laser saddle mounts seamlessly to the receiver with a 5mW beam adjustable for windage and elevation—multiple touchpad activation points give you flexibility in how you engage. The ergonomic AfterShock grip features a rubberized palm pad to reduce felt recoil and improve shooter comfort, while the streamlined forend with embossed strap keeps your support hand locked in and clear of the muzzle. The magazine tube extension includes M-LOK slots on the sides and bottom, so you can mount accessories exactly where you need them. A knurled charging handle, oversized paddle-style bolt release, and ambidextrous safety with a bold red indicator complete a shotgun that handles as well as it shoots.

Key Features

• Semi-auto gas system with nickel-boron internal components for corrosion resistance and reliability
• Integrated Crimson Trace laser saddle with windage/elevation adjustment and multiple activation points
• Enlarged, beveled loading port with anodized orange follower for fast, smooth reloading
• Ergonomic AfterShock grip with rubberized palm pad to reduce recoil and improve control
• Magazine tube extension with M-LOK mounting slots for tactical accessory flexibility
• Oversized, paddle-style bolt release and knurled charging handle for positive operation
• Ambidextrous safety with high-visibility red indicator
• Forend strap keeps support hand clear of the muzzle
• Non-NFA configuration—no stamp required

Specifications

Frequently Asked Questions

Is the Crimson Trace laser saddle adjustable for windage and elevation?

Yes. The laser saddle mounted to the receiver features windage and elevation adjustment so you can dial it in to your point of impact. It also has multiple touchpad activation points for flexible control.

What shells does the M990 Aftershock accept?

The M990 is chambered for 3" 12-gauge shells and operates on a semi-auto gas system. It holds 5 rounds in the magazine.

Can I mount tactical accessories on this shotgun?

Yes. The magazine tube extension includes M-LOK-compatible slots on the sides and bottom, allowing you to mount lights, rails, and other accessories where you need them.

Does this shotgun require a federal stamp or tax?

No, this is a non-NFA configuration, so no federal stamp or tax stamp is required.