Mossberg 590R Shotgun 12ga 6rd Capacity 18.5" Barrel AR Mil-Spec Adjustable Stock Magpul MOE+ Grip

The Mossberg 590R is a modern tactical pump-action shotgun built on the proven foundation of Mossberg's legendary 590 platform. Built for shooters who want AR ergonomics and modularity in a shotgun, the 590R combines traditional pump-action reliability with contemporary features like a rotary safety selector, Picatinny rail, and Mil-Spec adjustable stock compatibility. It's equally at home for home defense, competitive shotgun sports, or tactical training.

The 18.5" barrel with integrated heat shield keeps your hands safe during extended shooting while keeping the gun maneuverable in tight spaces. The enlarged, beveled loading port makes feeding 3" shells smooth and fast, and the exposed follower gives you a clear view of your round count. Dual extractors, twin action bars, and a positive steel-to-steel lockup ensure the pump action cycles reliably through whatever you feed it. The anti-jam elevator keeps things moving even when you're pushing the pace.

Ergonomics come standard: the ambidextrous rotary safety selector lets you work the gun from either shoulder, the flat-profile trigger breaks clean and crisp, and the compact forend fits shooters of all hand sizes. The stock base is compatible with standard Mil-Spec stocks and offers five positions of adjustment to dial in your length of pull. The included Magpul MOE+ grip and interchangeable recoil pad are already installed, and dual QD ports on the stock give you quick attachment points for a sling or other gear. The top Picatinny rail accepts AR-style optics and comes fitted with Magpul MBUS sights for reliable iron sight backup.

This is a shotgun that respects function over fashion—designed by people who understand how tactical shotguns actually get used.

Key Features

• 12-gauge pump action with 3" chamber and 6+1 capacity
• 18.5" barrel with integrated heat shield for safe, extended shooting
• Ambidextrous rotary safety selector for either-hand operation
• Top Picatinny rail with Magpul MBUS 3 sights included
• 5-position Mil-Spec adjustable stock with Magpul MOE+ grip and interchangeable recoil pad
• Dual extractors, twin action bars, and anti-jam elevator for reliable cycling
• Enlarged, beveled loading port with exposed follower for quick loading
• Flat-profile trigger with smooth, crisp break
• Dual QD mounting ports for sling attachment
• Accu-Choke system (cylinder bore or breacher choke)

Specifications

Frequently Asked Questions

Is the 590R compatible with standard AR-15 stocks and accessories?

The stock base is compatible with Mil-Spec stocks and the shotgun accepts standard Mil-Spec adjustable stocks. The Picatinny rail on top is designed for AR-style optics. However, verify compatibility with any specific aftermarket parts before purchase, as shotgun ergonomics differ from rifles.

What's included with the 590R?

The shotgun comes equipped with a Magpul MOE+ pistol grip, interchangeable recoil pad, Magpul MBUS 3 sights mounted on the top Picatinny rail, and your choice of cylinder bore or breacher choke for the Accu-Choke system.

Can I use this for home defense?

The 18.5" barrel and compact overall profile make the 590R well-suited for home defense, and the quick loading and cycling characteristics of a pump action are reliable in high-stress situations. Always follow local laws regarding shotgun use and barrel length for your area.

Is the safety lever ambidextrous?

Yes. The 590R features an ambidextrous AR-style rotary safety selector that can be operated from either side of the receiver, making it accessible for left- and right-handed shooters.