Mossberg 50757 590R 12 Gauge Pump 3" 6+1 18.50" OD Green Cerakote Heat Shield Barrel, OD Green Cerakote Steel Receiver, Black AR Mil-Spec Adjustable Synthetic Stock, Black Magpul Grip

The Mossberg 590R 12 gauge pump-action shotgun brings modern tactical features to a platform built on decades of proven reliability. This 18.5" OD Green Cerakote model pairs the classic strength of pump-action operation with thoughtful ergonomic upgrades that make it equally at home on the range, in home defense, or in the field. Whether you're a shooter who values simplicity and durability over autoloader complexity, or you need a shotgun that handles low-recoil loads without the feeding finickiness that can plague semi-autos, the 590R delivers.

The 3" chamber gives you the flexibility to run standard 2.75" loads or step up to magnum rounds when you need that extra payload. With a 6+1 capacity, you get a respectable ready round count in a compact package. The rotary safety selector sits right where your thumb naturally rests—borrowed from the AR platform, it's ambidextrous and faster than traditional tang safeties. The enlarged, beveled loading port makes feeding shells smooth and quick, even when you're moving fast or wearing gloves. The integrated heat shield protects your hand from a scorching barrel, a practical detail that makes a real difference during extended shooting sessions.

This particular 590R is dressed in OD Green Cerakote finish on both the barrel heat shield and steel receiver—a finish that's tough, corrosion-resistant, and has become the go-to for serious shooters. The furniture is pure function: a mil-spec compatible adjustable synthetic stock with five positions of fit, a black Magpul grip for positive purchase, and a top Picatinny rail ready for red dots or irons. The forend is ergonomically refined, and the gun accepts standard Accu-Choke tubes for pattern flexibility. Dual extractors, twin action bars, and a positive steel-to-steel lockup keep the action running reliably under hard use.

This is tactical shotgun design that doesn't compromise on the fundamentals—just a well-engineered pump gun that works.

Key Features

• 12 gauge, 3" chamber with 6+1 round capacity
• 18.5" barrel with integrated heat shield in OD Green Cerakote
• Ambidextrous rotary safety selector (AR-style)
• 5-position adjustable mil-spec synthetic stock for custom fit
• Magpul MOE+ grip in black for ergonomic control
• Top Picatinny rail for optics or backup iron sights
• Accu-Choke system for pattern customization
• Dual extractors and twin action bars for reliability
• Enlarged, beveled loading port with exposed follower
• 2-sided QD mounting ports on stock
• OD Green Cerakote steel receiver and barrel finish

Specifications

Frequently Asked Questions

Can I swap out the stock or use a different grip?

Yes. The 590R stock base is compatible with standard mil-spec shotgun stocks, giving you flexibility to adjust length of pull or swap finishes. The Magpul grip can be replaced with other compatible options as well. The gun accepts Magpul MBUS 3 sights if you want backup iron sights without the optic.

What's the effective range and best use case for this shotgun?

The 18.5" barrel and 3" chamber make this a natural fit for home defense, tactical training, and sport shooting. Pump actions are simple, reliable, and user-friendly across skill levels. The OD Green Cerakote and rail system reflect a modern tactical platform, but fundamentally this is a no-nonsense shotgun for anyone who prefers proven pump-action mechanics over semi-auto complexity.

Is the heat shield really necessary?

The integrated heat shield protects your hand and forend from barrel heat, especially important during rapid fire or sustained shooting sessions. It's a practical feature that makes handling more comfortable and safer under sustained use.

What choke options come with this model?

The 590R is available with Accu-Choke in either Cyl. Bore or Breacher configurations, allowing you to tailor pellet spread for your intended application.