Mossberg 590S
O.F. Mossberg & Sons · Shotgun · In Production · 2021
Also known as: 590S, Mossberg 590S Tactical
Overview
The Mossberg 590S is a pump-action 12-gauge shotgun built on the proven 590 platform with a patented dual-feed system that cycles 1.75-inch mini shells, standard 2.75-inch shells, and 3-inch magnum shells interchangeably without an adapter. This versatility allows shooters to load any combination of shell lengths simultaneously, providing up to 13+1 capacity with mini shells or 8+1 with standard loads from the 20-inch barrel model. The 590S retains all hallmarks of the 590 family including dual extractors, twin action bars, steel-to-steel lockup, anti-jam elevator, and Mossberg's signature top-tang ambidextrous safety. The M-LOK compatible forend accommodates accessories, and ghost ring sights provide rapid target acquisition. Available in standard, optic-ready, compact, and Shockwave configurations.
Specifications
| Weight (empty) | 3289 g (116.0 oz) |
| Overall Length | 1041 mm (40.98") |
| Barrel Length | 508 mm (20.00") |
| Action Type | Pump Action |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 8 rounds |
| Magazine Type | Tubular |
| Effective Range | 40 m (44 yd) |
| Barrel Rifling | Smoothbore |
| Frame Material | Aluminum |
| Barrel Material | Steel |
| Stock Material | Polymer |
| Finish | Matte Blue |
Calibers
- 12 Gauge · primary — also known as 12 ga, 12 bore
Features
- Firing modes: Manual
- Feed systems: Tubular Magazine
- Safety mechanisms: Tang Safety
- Features: Short Shell Cycling, Dual Extractors, Twin Action Bars, Steel To Steel Lockup, Anti Jam Elevator, Accu Choke System, Ghost Ring Sights, M Lok Forend, Clean Out Magazine Tube, 3 Inch Chamber, 1 75 Inch Mini Shell Compatible
Variants
- Mossberg 590S Optic-Ready — Optics Ready
- Mossberg 590S Compact — Compact
- Mossberg 590S Shockwave — Shockwave
- Mossberg 590S Magpul — Accessory Package
- Mossberg 590S Optic-Ready Threaded — Threaded
Service history
Operators
- United States Civilian Market · adopted 2021
Production
Production years: 2021-present
Manufactured in Eagle Pass, Texas
Origin
Country of origin: United States
Notes
The 590S's patented shell-cycling system (U.S. Patents 11,598,596 and 12,203,718) is the key differentiator from the standard 590. With 1.75-inch mini shells, the 20-inch barrel model achieves 13+1 capacity - nearly double the capacity of standard 2.75-inch loads. The 18.5-inch barrel model holds 9+1 with standard shells or 13+1 with mini shells. Available in multiple configurations including Shockwave variants with bird's-head Raptor grip. MSRP ranges from $700-$1,064 depending on configuration.
Background
The 590S solved a problem that had vexed pump shotgun owners for years: the inability to reliably cycle short shells without an aftermarket adapter. Mossberg's patented dual-feed system allows the 590S to switch between 1.75-inch mini shells, standard 2.75-inch, and 3-inch magnum loads on the fly, making it the most versatile pump shotgun in the company's 100+ year history.