MOSSBERG 590 RETROGRADE - 12GA - 3" - 18.5" - 6+1 - BLACK
$599.69 - $684.69
MOSSBERG 590S SHOCKWAVE - 12GA - 3" - 18.5" - 9+1 - BLACK
Mossberg
$587.69 - $665.69
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Mossberg
MOSSBERG 590S SHOCKWAVE - 12GA - 3" - 18.5" - 9+1 - BLACK
The Mossberg 590S Shockwave redefines compact firepower with its revolutionary ability to cycle 1¾", 2¾", and 3" shells interchangeably — giving shooters unmatched versatility in a short, maneuverable 12-gauge platform.
- Cycles 1¾", 2¾", and 3" shells — load any combination simultaneously
- 18.5" barrel keeps overall length compact without sacrificing ballistic performance
- Dual extractors and twin action bars ensure smooth, reliable cycling every time
- Positive steel-to-steel lockup and anti-jam elevator minimize feeding failures
- Top-mounted ambidextrous safety for fast, instinctive access by any shooter
- Magazine clean-out tube with cap simplifies maintenance and debris clearing
Who This Is For
The 590S Shockwave is built for experienced shooters seeking a highly compact 12-gauge for home defense, range use, or as a uniquely versatile addition to any collection. Its pistol-grip "bird's head" configuration and short profile make it ideal for tight-space scenarios, while the multi-shell-length capability appeals to those who want maximum flexibility in ammunition selection without switching firearms.
Specifications
| Brand | Mossberg |
|---|---|
| Model | 590S Shockwave |
| Gauge | 12 Gauge |
| Chamber | 3" (also cycles 1¾" and 2¾") |
| Barrel Length | 18.5" |
| Capacity | 9+1 |
| Action | Pump Action |
| Stock | Shockwave Raptor Bird's Head Pistol Grip |
| Finish | Matte Black |
| Safety | Top-Mounted Ambidextrous |
| Overall Length | 26.37" |
| Weight | Approx. 5.25 lbs (unloaded) |
Frequently Asked Questions
Can the Mossberg 590S Shockwave really cycle different shell lengths in the same tube?
Yes — this is the defining feature of the 590S platform. Thanks to Mossberg's redesigned feeding system, you can load 1¾" mini shells, standard 2¾" shells, and full 3" magnum loads in any combination within the same magazine tube. The anti-jam elevator and dual extractors handle the transition between shell lengths reliably, so you're not locked into a single ammunition type.
Is the Mossberg 590S Shockwave considered a shotgun, and do I need a special license?
The 590S Shockwave is legally classified as a "firearm" (not a shotgun) by the ATF because it ships from the factory with a bird's head pistol grip and an overall length over 26". This means it does not require an NFA tax stamp or special licensing at the federal level beyond a standard firearm purchase. However, state and local laws vary — consult local regulations before purchasing.
What ammunition is recommended for home defense use in the 590S Shockwave?
For home defense, most shooters favor standard 2¾" buckshot loads (such as Federal FliteControl #00 buck) for their reliable pattern and proven stopping performance. The Shockwave's 18.5" barrel delivers adequate velocity for defensive loads while keeping the platform compact. Mini shells (1¾") can reduce felt recoil noticeably and still deliver effective payloads, making them a popular choice for shooters sensitive to 12-gauge recoil.
- Caliber:
- 12 GA
- Color:
- Black
- Barrel Length:
- 18.5"
- Chamber:
- 3"
- Sights:
- Bead
- Capacity:
- 9+1
- Stock:
- Shockwave
- Action:
- Pump
- Type of Barrel:
- Cylinder
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