Quick Look
The Mossberg 590 Shockwave SPX is a tactical-style shotgun evolving from Mossberg's 590 series, designed in the early 2000s. It emphasizes compact maneuverability and rugged reliability for close-quarters use. Currently, it enjoys a niche among enthusiasts seeking a powerful yet handy home defense platform.
Why It's a Top Choice
- Compact bullpup design enhances close-quarters handling
- Reliable dual-action triggers with Ghost Ring sights
- Robust 12-gauge chamber handles various loads
- Legal classification simplifies ownership in many states
- Strong aftermarket support for customization
Key Variants
Mossberg 590 Shockwave
The original Shockwave model caters to enthusiasts valuing compact defense with a 14-inch barrel.
Mossberg 590 Shockwave SPX
Upgraded with enhanced Ghost Ring sights and Picatinny rails for optics and accessories.
Competitor Comparison Table
| Feature | Mossberg 590 Shockwave SPX | Remington 870 Tac-14 | Saiga 12 |
|---|---|---|---|
| MSRP | $850 - $900 | $1,000 - $1,100 | $1,200 - $1,300 |
| Capacity / Size | 5+1 shells, 14-inch barrel | 6+1 shells, 14-inch barrel | 10+1 shells, 18.5-inch barrel |
| Weight | 5.7 lbs | 6.8 lbs | 7.9 lbs |
| Optics-ready | Yes, with Picatinny rail | No | Yes, mount available |
| Trigger Type | Dual-action ghost ring | Single-action | Single/double-action |
| Notable Pro | Compact, reliable, accessories ready | Proven reliability, classic design | High capacity, semi-automatic |
| Notable Con | Limited capacity due to size | Heavier, fewer accessories | Complex maintenance |
Best Use Cases
- Home defense and close quarters protection
- Law enforcement specialty roles
- Shotgun sports and tactical training
- Collector interest in compact shotguns
FAQs
Can I use standard 12-gauge shells in the Mossberg 590 Shockwave SPX?
Yes, the 590 Shockwave SPX uses standard 12-gauge ammunition with 2.75-inch and 3-inch shells compatible.
What is the overall length of the Mossberg 590 Shockwave SPX?
The overall length is approximately 26 inches, enabling maneuverability without sacrificing power.
How does the Mossberg 590 Shockwave SPX compare to traditional shotguns?
The compact bullpup design offers better handling in tight spaces at the expense of magazine capacity compared to full-size shotguns.







