Mossberg 50759 590R 12 Gauge Pump 3" 6+1 18.50" OD Green Cerakote Heat Shield Barrel, OD Green Cerakote Steel Receiver, AR Mil-Spec Adjustable Black Synthetic Stock, Black Polymer Magpul Grip
$823.73
$1,141.00
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$317.27
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The Mossberg 590R is a modern tactical pump-action shotgun built on decades of reliable pump-action engineering. This 12-gauge 3" chamber model combines traditional strength with contemporary features designed for serious shooters—whether you're running drills at the range, setting up for home defense, or working through practical shotgun courses. The 590R isn't a reinvention; it's a refinement of what works, wrapped in a platform that accepts AR-pattern accessories and adjusts to fit your needs.
What sets the 590R apart is its ergonomic approach to the tactical shotgun format. The ambidextrous rotary safety selector puts controls within reach regardless of your shooting hand. An integrated heat shield combines with the 18.50" barrel in a single unit, reducing complexity while keeping your hands safe during extended shooting. The enlarged, beveled loading port and exposed follower make feeding intuitive and visible—details that matter when you're working under pressure. A Picatinny rail along the top is ready for optics or iron sights, and the stock features five positions of adjustment to dial in your length of pull, so it fits your frame and your gear.
The 590R handles like a shotgun should: dual extractors, positive steel-to-steel lockup, twin action bars, and an anti-jam elevator keep the action smooth and reliable through thousands of rounds. The 6+1 capacity (six in the tube, one in the chamber) is standard for this class. This OD Green Cerakote finish version pairs a tough receiver with the same durable coating on the heat shield, complemented by a black synthetic stock with Magpul MOE+ grip and interchangeable recoil pad. The 2-position QD mounting ports let you attach slings your way.
Whether you're stepping into the tactical shotgun world or adding a versatile 12-gauge to your collection, the 590R delivers genuine functionality without unnecessary bulk or complexity.
Key Features
- 12-gauge 3" chamber with 6+1 round capacity
- Ambidextrous AR-style rotary safety selector for either-handed operation
- 18.50" barrel with integrated heat shield—single-unit design for rugged reliability
- Five-position adjustable stock fits different shooters and gear setups
- Picatinny rail on top for easy optic or sight mounting
- Enlarged, beveled loading port with visible follower for smooth feeding
- Dual extractors, twin action bars, anti-jam elevator for smooth operation
- Two QD mounting ports for sling attachment
- Magpul MOE+ pistol grip with interchangeable recoil pad
- AR Mil-Spec compatible stock base accepts other Mil-Spec stocks and grip designs
- OD Green Cerakote on barrel and receiver; black synthetic stock
Specifications
| Gauge | 12 Gauge |
| Chamber | 3" |
| Capacity | 6+1 (6 rounds tube, 1 in chamber) |
| Barrel Length | 18.50" with integrated heat shield |
| Barrel Finish | OD Green Cerakote |
| Receiver Finish | OD Green Cerakote steel |
| Choke | Accu-Choke (included options vary by configuration) |
| Stock | AR Mil-Spec adjustable (5 positions), black synthetic |
| Grip | Magpul MOE+ polymer, black |
| Sighting System | Picatinny rail on receiver top |
| Recoil Pad | Interchangeable |
| Safety | Ambidextrous rotary selector |
| QD Ports | Two 2-position mounts |
Frequently Asked Questions
What makes the 590R different from other Mossberg pump shotguns?
The 590R is Mossberg's modern tactical platform built with AR-pattern ergonomics: an ambidextrous rotary safety, AR Mil-Spec stock compatibility, Picatinny rail, and QD mounting points. It combines proven pump-action reliability with contemporary accessories and adjustability that don't require tools or gunsmithing.
Can I swap the stock or forend for other AR-compatible parts?
The stock base is AR Mil-Spec compatible and accepts other Mil-Spec stocks. The grip shown here is a Magpul MOE+, and the stock base design lets you experiment with other grip designs as well. The manufacturer notes that stock and forend are specifically designed for the 590R, so confirm compatibility before purchasing alternatives.
What's included with this shotgun?
The 590R comes as configured: OD Green Cerakote barrel with integrated heat shield, OD Green Cerakote receiver, AR Mil-Spec adjustable black synthetic stock, black Magpul MOE+ grip, and an Accu-Choke system. Specific choke tubes included depend on the configuration; confirm with your retailer.
Is this shotgun set up for optics right out of the box?
Yes. The 590R has a Picatinny rail on the receiver top optimized for AR-style optics, so you can mount a red dot, scope, or backup iron sights without modification. It's ready to accept any standard Picatinny-mounted sight.
