Quick Overview
The Mossberg 590S Shockwave is a compact 12 Gauge pump-action firearm designed for maximum versatility and defensive capability. Featuring a 14.375-inch barrel, Shockwave grip, and the ability to reliably cycle 1.75", 2.75", and 3" shells, the 590S delivers exceptional flexibility in a compact package.
Built on Mossberg's proven 590 platform, the 590S Shockwave incorporates dual extractors, twin action bars, positive steel-to-steel lockup, and an anti-jam elevator for dependable operation. Its ability to run multiple shell lengths without modification gives shooters more ammunition choices than traditional pump-action platforms.
Key Benefits
- Multi-Shell Capability: Cycles 1.75", 2.75", and 3" shells interchangeably
- Compact Shockwave Design: Easy to transport and maneuver in confined spaces
- 8-Round Capacity: Increased capacity when using 1.75" mini shells
- Anti-Jam Elevator: Enhances feeding reliability and smooth operation
- Ambidextrous Safety: Convenient top-mounted safety design
- Proven Mossberg 590 Platform: Trusted durability and performance
What's Included
- Mossberg 590S Shockwave 12 Gauge Firearm
- Shockwave Raptor Grip
- Owner's Manual
- Factory Packaging
Best For
- Home defense
- Truck or camp gun applications
- Recreational shooting
- Shooters wanting multi-shell compatibility
Flexible Ammunition Compatibility
The defining feature of the 590S platform is its ability to reliably cycle 1.75-inch mini shells, standard 2.75-inch shells, and full-power 3-inch magnum loads. Shooters can even load different shell lengths within the same magazine tube, providing unmatched versatility for a variety of shooting applications.
Compact Shockwave Configuration
The Shockwave platform combines a short 14.375-inch barrel with Mossberg's signature bird's-head style Shockwave grip. This compact configuration enhances maneuverability while retaining the power and reliability of a pump-action shotgun platform.
Reliable Mossberg Action
The 590S utilizes dual extractors, twin action bars, positive steel-to-steel lockup, and Mossberg's anti-jam elevator system. These proven design elements contribute to smooth cycling and dependable performance under demanding conditions.
Built for Defensive Use
A top-mounted ambidextrous safety allows intuitive operation for both right- and left-handed shooters, while the simple bead sight provides fast target acquisition at defensive distances.
Product Specifications
| Brand | Mossberg |
| Model | 590S Shockwave |
| Action | Pump Action |
| Gauge | 12 Gauge |
| Chamber | 3" |
| Compatible Shell Lengths | 1.75", 2.75", and 3" |
| Barrel Length | 14.375" |
| Capacity | 8 Rounds (with 1.75" shells) |
| Grip | Shockwave Pistol Grip |
| Safety | Top-Mounted Ambidextrous Safety |
| Sights | Bead Sight |
| Choke | Cylinder Bore |
| Features | Anti-Jam Elevator, Dual Extractors, Twin Action Bars |
| Finish | Matte Blued |