Description
There's a reason the 590 Shockwave became one of the most talked about firearms Mossberg has ever put out. Take the same rugged 590 action trusted by military and law enforcement for decades, pair it with a 14 inch heavy walled barrel and the distinctive Raptor bird's head grip, and you get something that measures just 26.37 inches end to end and weighs around 5.25 pounds. That kind of footprint stows behind a truck seat, fits in a corner safe, and swings through a doorway without hanging up on anything.
What Makes the 590 Shockwave Tick
Under the hood, this is pure 590. Dual extractors, twin action bars, positive steel to steel lockup, and the anti-jam elevator that keeps shells feeding smoothly no matter how hard you run the pump. The ambidextrous top mounted safety sits right under your thumb, which is a genuinely useful touch on a grip framed firearm like this one. A clean-out magazine cap makes tube maintenance quick, and the matte blued finish on the heavy walled barrel shrugs off honest wear.
Built for Control, Not Just Compactness
The Raptor grip is shaped to direct recoil in a way that's noticeably more manageable than an old school straight pistol grip, and plenty of owners are surprised at how controllable this thing is once they learn the push-pull technique. The strapped corn cob forend is more than a styling choice too. That strap keeps your lead hand planted and clear of the muzzle while you're working the action, which matters a lot with a barrel this short. Up top, a simple front bead handles sighting duties, and with a cylinder bore and 3 inch chamber you can feed it everything from light birdshot for range days to full power buckshot and slugs.
Feeding and Running Your Shockwave
Capacity is 5+1 with standard 2.75 inch shells from the tubular magazine. Pattern your defensive load of choice at realistic distances, spend some time on your grip technique, and this compact 12 gauge rewards you with dependable performance and a whole lot of fun at the range.
Key Specifications
- Model: 590 Shockwave
- Manufacturer Part Number: 50659
- UPC: 015813506595
- Gauge: 12 Gauge, 3" Chamber
- Action: Pump Action
- Barrel: 14" Heavy-Walled, Cylinder Bore
- Capacity: 5+1 (2.75" shells)
- Overall Length: 26.37"
- Weight: 5.25 lbs
- Grip: Shockwave Raptor Bird's Head Pistol Grip
- Forend: Corn Cob Style with Hand Strap
- Sights: Front Bead
- Finish: Matte Blued
- Safety: Ambidextrous Top-Mounted
- Magazine: Tubular with Clean-Out Cap
What’s Included
- Mossberg 590 Shockwave 12 Gauge Pump Firearm
- Raptor bird's head grip (installed)
- Strapped corn cob forend (installed)
- Owner's manual and factory documentation
Frequently Asked Questions
How bad is the recoil on the Mossberg 590 Shockwave?
It's more manageable than most people expect. The Raptor grip is shaped to direct recoil energy back through your hand rather than snapping the muzzle up, and using a push-pull technique with the strapped forend keeps things controllable. Start with lighter target loads or reduced recoil buckshot while you get a feel for it, then work up to full power loads.
Can the 590 Shockwave run mini shells?
Not reliably out of the box, since the action was designed around standard length shells. The popular fix is an inexpensive OpSol Mini-Clip adapter, which lets it cycle 1.75 inch mini shells dependably and bumps capacity up in the process. Without the adapter, stick to 2.75 and 3 inch shells.
Does the Mossberg Shockwave come with sights or an optic rail?
It ships with a simple fixed front bead, which suits the close range role this firearm was built for. There's no factory rail on this model, but the 590 receiver is drilled and tapped, and the aftermarket offers plenty of mounts, lasers, and lights if you want to add sighting options later.
What ammo works best in the 590 Shockwave for home use?
The cylinder bore and 3 inch chamber will handle everything from birdshot to slugs, so you have options. Most folks land on a quality reduced recoil 00 buckshot load, which patterns well at indoor distances and is easier to control in a firearm this light. Whatever you choose, pattern it at the ranges you expect to use it.




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