Description
The MSBRG 990 AFTRSHK SPX 12G/14.375 FDE is a semi-automatic shotgun built for shooters who demand compact handling without sacrificing firepower. Chambered in 12-gauge with a 14.375-inch barrel and finished in Flat Dark Earth, this Mossberg 990 AfterShock SPX delivers 5+1 capacity in a package that swings fast and points natural. Whether you’re clearing a tight corner on a ranch or working a dove field behind a good dog, this scattergun means business.
| Specification | Detail |
|---|---|
| Manufacturer | Mossberg (MSBRG) |
| Model | 990 AfterShock SPX |
| Gauge | 12 Gauge |
| Barrel Length | 14.375 inches |
| Finish | Flat Dark Earth (FDE) |
| Capacity | 5+1 (per manufacturer specs) |
| Weight | Approximately 6.5 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Ultra-Compact Barrel Length — At just 14.375 inches, this barrel makes the 990 AfterShock SPX incredibly easy to maneuver in tight spaces, whether you’re working a truck gun setup or navigating thick brush on a hog hunt.
- 5+1 Round Capacity — You get five shells in the tube plus one in the chamber, giving you plenty of firepower for defensive or field use without adding bulk.
- Flat Dark Earth Finish — The FDE coating resists corrosion and glare, making it ideal for low-light conditions and blending into Southern terrain from pine forests to marsh edges.
- Semi-Automatic Action — Mossberg’s gas-operated system cycles quickly and reliably, reducing felt recoil so you can stay on target for fast follow-up shots.
- Integrated Tactical Features — Factory-installed ghost ring sights and a Picatinny rail on the receiver allow for easy optic mounting, giving you versatility right out of the box.
Who It’s For
This shotgun is built for the Southern shooter who values reliability and compactness. It’s perfect for home defense, ranch work, or a truck gun that can handle anything from coyotes to clays. Bird hunters who appreciate a fast-handling scattergun for tight cover will also find a lot to like. If you’re a traditionalist who wants modern tactical features without losing that classic Mossberg dependability, this is your gun.
Pros & Cons
- Pros: Ultra-compact for easy carry and storage; reliable gas-operated action reduces recoil; factory tactical features save you aftermarket costs; FDE finish is durable and low-profile.
- Cons: The 14.375-inch barrel may limit effectiveness with extra-long shot strings on distant waterfowl, but it excels in close to mid-range work.
Comparison
| Feature | MSBRG 990 AFTRSHK SPX | Remington 870 Tactical | Benelli M4 |
|---|---|---|---|
| Action | Semi-Auto, Gas-Operated | Pump-Action | Semi-Auto, Gas-Operated |
| Barrel Length | 14.375 inches | 18.5 inches | 18.5 inches |
| Capacity | 5+1 | 6+1 | 5+1 |
| Weight | ~6.5 lbs | ~7.5 lbs | ~8.4 lbs |
| Finish | FDE | Black | Black |
| Price | ~$1,020 | ~$500 | ~$2,000 |
FAQ
What is the barrel length on the MSBRG 990 AfterShock SPX?
The barrel is 14.375 inches, making it one of the most compact semi-auto 12-gauge shotguns available for tactical and field use.
Does this shotgun come with a pistol grip?
The 990 AfterShock SPX features a traditional stock design with a synthetic FDE finish and a comfortable grip angle, not a pistol grip. It’s built for fast shouldering and natural pointing.
Can I mount a red dot sight on this shotgun?
Yes, the receiver has an integrated Picatinny rail, so you can mount a red dot or other optic easily without any gunsmithing.
Is this shotgun legal for hunting in all states?
With a barrel length of 14.375 inches, it may not meet minimum barrel length requirements for hunting in some states. Check your local regulations before using it for game birds or deer. It’s ideal for home defense and ranch use where length restrictions don’t apply.
What is the capacity of the magazine tube?
The tube holds 5 rounds of 2.75-inch shells, plus one in the chamber for a total capacity of 5+1.
According to Mossberg’s specs, the 990 AfterShock SPX weighs just 6.5 pounds, making it one of the lightest semi-auto 12-gauges in its class. Over 10 million Mossberg shotguns have been sold in the U.S. since 1919, a testament to their reliability.
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Last updated: April 2026
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