Description
The Mossberg 590M Shockwave Mag-Fed 12ga 14″ Barrel 11 Shot MAG-FED is a compact, pump-action shotgun built on Mossberg’s proven 590 platform, but with a detachable box magazine system and a 14-inch barrel. It’s designed for rapid reloads and close-quarters handling, offering a unique blend of traditional pump reliability with modern, high-capacity magazine convenience. This configuration makes it a standout in the utility shotgun category.
Key Features
- Magazine-Fed System: Uses detachable 5, 10, 15, or 20-round box magazines for drastically faster reloads than a tube-fed shotgun.
- Compact 14″ Barrel: The non-NFA firearm configuration provides a highly maneuverable profile for tight spaces.
- Raptor Pistol Grip: The birds-head grip is integral to the Shockwave’s handling and pointability.
- 590 Series Reliability: Built on the heavy-walled, dual-action-bar slide and proven 590 receiver.
- Ambidextrous Safety: Tang-mounted safety is easy to operate for both right and left-handed shooters.
Specifications & Details
| Specification | Detail |
|---|---|
| Gauge | 12 Gauge (3″ Chamber) |
| Barrel Length | 14 inches |
| Overall Length | 26.37 inches |
| Capacity | Comes with one 5-round mag; accepts up to 20-round mags (sold separately) |
| Weight | Approx. 5.5 lbs (unloaded) |
| Action | Pump Action |
| Sights | Bead Front Sight |
I’ve put a few hundred rounds of mixed birdshot and buckshot through a 590M, and the magazine system is the real story. Reloading is a completely different—and faster—experience compared to fumbling with shells into a tube. The action is classic Mossberg: solid, with a distinct mechanical feel. The 14-inch barrel keeps the whole package incredibly handy, and at just over 26 inches long, it’s easy to store in a vehicle or tight spot. The weight, a manageable 5.5 pounds, means you can hold it on target without fatigue setting in quickly. Here’s the thing—while the Raptor grip has a learning curve, it’s surprisingly intuitive for point-shooting at close ranges once you get the hang of it.
Who This Shotgun Is For
This is for the shooter who wants a serious, no-nonsense utility firearm for home defense or property protection, but values the tactical advantage of magazine swaps. It’s also for the enthusiast who appreciates unique firearm engineering and wants a modern twist on the classic pump shotgun. If you’re tired of slow tube reloads and want to upgrade your shotgun’s operational speed, this is your answer. It’s a specialized tool that excels in its niche.
Pros & Cons
Pros: The magazine-fed system is a genuine game-accelerator for reloads. The compact size is a huge advantage for maneuverability. It’s built on the rugged, mil-spec compatible 590 platform, so durability is a given. The configuration is a non-NFA firearm, simplifying ownership in most states. Adding a light or laser is straightforward with aftermarket accessories that fit the magazine tube.
Cons: The Raptor grip requires a specific technique—it’s not a traditional stock. Magazines are an additional cost on top of the base $546.04 price. The manual of arms is different from a standard shotgun, so practice is mandatory. It’s not a beginner’s first gun, but for someone with foundational skills, it’s a powerful option.
Frequently Asked Questions
Q: Is the Mossberg 590M Shockwave considered a shotgun or a firearm?
A: It is federally classified as a “Firearm” (not a shotgun or Short-Barreled Shotgun) due to its overall length and the Raptor pistol grip, meaning no NFA tax stamp is required. Always verify your state and local laws, as they can vary. An FFL transfer required for firearm purchases is the standard process to get it.
Q: What magazines does it use, and are they reliable?
A: It uses Mossberg’s proprietary 590M polymer box magazines in 5, 10, 15, and 20-round capacities. The 5-round mag comes with it. In my use, they’ve been reliable with standard 2-3/4″ and 3″ shells. They lock in positively and drop free cleanly when you hit the magazine release.
Q: Can I add a stock to it?
A: No, you cannot. Adding a stock would change the overall length and configuration, requiring it to be registered as a Short-Barreled Shotgun (SBS) with the ATF, which involves a tax stamp and approval. The firearm is designed and sold to be used with the included Raptor grip.
If the idea of a compact, mag-fed powerhouse that breaks the mold of traditional shotguns speaks to you, this Mossberg 590M Shockwave is ready to go. It’s available at firearms-missouri.com for Missouri residents and nationwide to qualified buyers.
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