New Mossberg 990 Aftershock Models Are Here — Available Now at GrabAGun
Mossberg just made a big move. They’ve taken their iconic 590 Shockwave and turned it into a semi-automatic powerhouse. Meet the Mossberg 990 Aftershock—a compact, gas-operated firearm built for speed, control, and home defense.
Even better, it’s available now at GrabAGun in three ready-to-run models. Whether you’re upgrading your gear or choosing your first defensive shotgun, the Aftershock delivers in a big way.

⚙️ Why the 990 Aftershock Stands Out
The 990 Aftershock gives you all the benefits of a Shockwave—but with faster shooting, less recoil, and no need to pump between shots. This means quicker follow-ups, more control, and better results when it matters most.

Let’s break down the highlights:
- Semi-Auto, Gas-Operated Action
This system softens recoil and cycles smoothly. As a result, your shooting is faster and more comfortable. - Upgraded Forend with M-LOK® Mounting
Want to add a light or laser? The forend includes a built-in M-LOK® adapter, making it easy to customize. - Top-Side Safety and Paddle Bolt Release
These large controls are easy to find and operate, even under pressure. - Padded Grip and Forend Strap
A rubber-padded grip and secure strap help keep your hold steady. This is especially helpful during rapid fire. - Three Models for Any Setup
Each one offers something different. Whether you want a laser, a fiber-optic sight, or just compact size, there’s a model for you.

📦 Which Model Fits You Best?
All three models are built on the same powerful platform. However, each one includes unique features:
| Model | Barrel Length | Sight System | Special Feature |
|---|---|---|---|
| 83001 | 14.75″ | Fiber-Optic | Compact, Fiber Optic Sight |
| 83002 | 18.5″ | Fiber-Optic | Longer Barrel, improved visibility |
| 83003 | 14.75″ | Fiber-Optic/Laser Sight | Crimson Trace® Lasersaddle |
All three include:
- 12 Gauge chamber (3-inch)
- 5+1 round capacity (with 2.75″ shells)
- Matte blue finish
- Raptor bird’s head grip

🛡️ Perfect for Home Defense
The 990 Aftershock isn’t just fun to shoot. It’s also one of the best tools for home defense. Its compact size allows you to move through tight hallways. Its semi-auto action means no wasted time between shots. Plus, its improved grip and sights help you stay accurate under pressure.
Because it’s gas-operated, even heavy loads are easier to handle. This makes the 990 Aftershock a smart choice for both new and experienced shooters.

🔍 Specs at a Glance
| Feature | Details |
|---|---|
| Gauge | 12 Gauge, 3″ Chamber |
| Action | Semi-Automatic (Gas-Operated) |
| Capacity | 5+1 with 2.75″ shells |
| Barrel | 14.75″ or 18.5″ Cylinder Bore |
| Finish | Matte Blue |
| Sights | Bead, Fiber Optic, or Laser |
| Forend | M-LOK® Rail |
| Grip | Black Synthetic, Padded Palm |

✅ Why Choose the 990 Aftershock?
- Easy to shoot and fast to fire
- Compact enough for home or vehicle carry
- Reduces recoil, boosts control
- Built to accept accessories
- Trusted Mossberg reliability
Whether you’re new to defensive firearms or upgrading from the 590, the Aftershock gives you everything you need—and more.
🔗 Buy the Mossberg 990 Aftershock Now at GrabAGun
All three 990 Aftershock models are in stock now at GrabAGun. Don’t wait—get the model that fits your setup and be ready for anything.
