The Mossberg 590A1 Pro is a purpose-built pump-action shotgun engineered for serious defensive and tactical use. This 12-gauge delivers the reliability and durability law enforcement and security professionals depend on, with a compact 18.5-inch heavy-walled barrel and field-proven action that cycles reliably under stress. The 6+1 capacity pairs a manageable magazine load with one ready in the chamber, and the adjustable synthetic stock (12–13 inch LOP with spacer) accommodates shooters of different builds without sacrificing handling speed.
Built for tough conditions, the Marinecote finish on the barrel and steel receiver resists corrosion in wet and humid environments—critical if you're operating near water or in coastal climates. The optic-ready receiver accepts micro red-dot sights (RMSc footprint) and ships with metal ghost-ring iron sights, including a fiber-optic front sight. The protective wings keep the sights low-profile, and you can remove the optic plate to co-witness or go red-dot only. Internally, dual extractors and steel-to-steel lockup ensure zero-tolerance reliability, while the twin action bars and anti-jam elevator keep things running when speed and certainty matter.
The safety is top-mounted and ambidextrous, so you can run it from either shoulder without fumbling. The heavy-walled barrel and metal trigger guard are built to absorb abuse, and the cylinder-bore choke keeps patterns tight without restricting velocity. At 6.75 pounds and 37.75 inches overall, it balances recoil control with maneuverability in close quarters or vehicles.
| Gauge | 12 Gauge |
| Action | Pump-Action |
| Chamber | 3 inch |
| Barrel Length | 18.5 inches |
| Barrel Finish | Marinecote (Silver) |
| Capacity | 6+1 |
| Choke | Cylinder Bore |
| Sights | Metal Ghost Ring (rear) with Fiber-Optic Front; Optic-Ready |
| Stock | Black Synthetic with Spacer |
| Length of Pull | 12–13 inches (adjustable) |
| Overall Length | 37.75 inches |
| Weight | 6.75 pounds |
| Receiver | Steel |
Yes. The receiver is optic-ready and accommodates micro red-dot sights with an RMSc footprint. The optic plate can be removed to mount your sight, and the included iron sights can be used co-witnessed or removed entirely.
The 590A1 Pro is purpose-built for defensive and tactical applications. The compact 18.5-inch barrel, quick-handling pump action, dual extractors, ambidextrous safety, and reliable internal design make it well-suited for both roles. The fiber-optic front sight aids target acquisition in low light.
Marinecote is a corrosion-resistant coating designed to handle wet and humid environments, making it a good choice if you're operating near water, in coastal areas, or in unpredictable weather.
The black synthetic stock features an adjustable length of pull (12–13 inches) with a spacer included, allowing you to customize fit for shooters of varying builds.
Mossberg
