Description
Mossberg 590S Shockwave is a pump-action 12 gauge shotgun built to run 1.75 in, 2.75 in, or 3 in shells. It has a 14.37 in matte blued barrel and a tubular magazine capacity of 8 rounds, with fixed cylinder choke for consistent shot patterns. A top-mounted ambidextrous safety and fixed bead sights keep the controls simple and quick to use.
Key features
- Cycles 1.75 in, 2.75 in, or 3 in shells (any combination of those shell lengths)
- Dual extractors and twin action bars for smooth operation
- Positive steel-to-steel lockup
- Anti-jam elevator design
- Magazine clean-out tube with cap
- Top-mounted ambidextrous safety
- Fixed cylinder choke
- Bead sights and fixed sights
| Chamber / Shell Length Compatibility | 1.75 in, 2.75 in, or 3 in shells |
|---|---|
| Barrel Finish | Matte Blued |
| Action | Pump Action |
| Caliber | 12 Gauge |
| Capacity | 8 rounds |
| Barrel Length | 14.37 in |
| Overall Length | 26.37 in |
| Choke | Fixed Cylinder |
| Safety | Ambidextrous Top Tang |
| Sights | Bead (Fixed Sights) |
| Magazine Type | Tubular Magazine |
| Model | 590S |



