Mossberg 590R Shotgun 12 ga 2.75" Chamber 6rd Magazine 18.5" Barrel FDE

The Mossberg 590R is a modern take on the pump-action shotgun, built for shooters who want tactical features without sacrificing the reliability that's made the 590 platform legendary. This 12-gauge 18.5" barrel shotgun pairs time-tested pump-action mechanics with a rotary safety selector, folding stock, and a top Picatinny rail—giving you a versatile platform that works equally well for home defense, sport shooting, or tactical training.

What sets the 590R apart is its thoughtful ergonomics. The ambidextrous rotary safety selector (no paddle fumbling in the dark), oversized beveled loading port with exposed follower, and flat-profile trigger with a crisp break make this gun feel more refined than typical duty shotguns. The Chisel folding stock mount lets you collapse the buttstock along the receiver for storage or tight spaces, while the 8-position adjustable stock and interchangeable recoil pads let you dial in length of pull from 12.5" to 16.5"—critical if you're running it with body armor or in winter gear. Magpul MBUS 3 adjustable sights come standard, and the integrated 18.5" barrel with heat shield keeps your hands safe during fast follow-up shots.

The receiver wears a premium Cerakote finish for corrosion resistance, and a 6+1 magazine capacity gets you through most defensive or training scenarios without reloading. Two QD ports support sling mounting, and the Cylinder Bore choke installed lets you pattern buckshot or slugs with predictable spread. This is a purpose-built shotgun for shooters who know what they want.

Key Features

• Ambidextrous rotary safety selector for intuitive operation
• Integrated heat shield on 18.5" barrel to protect your support hand
• Chisel folding stock mount with 8-position adjustable LOP (12.5"–16.5")
• Magpul MBUS 3 adjustable sights included
• Premium Cerakote-finished receiver for durability and corrosion resistance
• Oversized beveled loading port with exposed follower for smooth reloading
• Flat-profile trigger with crisp break
• Top Picatinny rail ready for optics or accessories
• Two QD ports for sling attachment
• 6+1 magazine capacity
• Interchangeable recoil pad options

Specifications

Frequently Asked Questions

What ammunition does the Mossberg 590R accept?

The 590R is chambered in 12 gauge with a 2.75" chamber, so it accepts standard 2.75" 12-gauge ammunition including buckshot, birdshot, and slugs loaded to typical defensive or sport pressures.

Can I fold the stock, and what's the benefit?

Yes. The Chisel folding stock mount allows the 8-position adjustable stock to fold completely along the reverse side of the receiver, reducing overall length for storage, transport, or use in tight spaces. It's especially useful if you're storing the gun in a vehicle or small safe.

Is the 590R suitable for home defense or tactical training?

The 590R is purpose-built for both. Its 18.5" barrel, compact folded profile, integrated heat shield, rotary safety, adjustable sights, and Picatinny rail make it well-suited to home defense, law enforcement training, and sport shotgun competition. The flat-profile trigger and ambidextrous controls support repeatable, controlled shooting.

What sights come with this shotgun?

The 590R ships with Magpul MBUS 3 adjustable sights mounted, so you can take it to the range or into service right away. The top Picatinny rail also accepts optics if you prefer a red dot or magnified sight.

Can I adjust the length of pull?

Yes. The 8-position adjustable stock allows you to set length of pull anywhere from 12.5" to 16.5", and it includes interchangeable recoil pads so you can customize fit and felt recoil. This is especially valuable if you shoot in different gear (light clothing, body armor, winter coat, etc.).