Mossberg has announced two new shotguns as part of the 590R series. The 590R series has ditched Mossberg’s famed tang safety for an AR-like lever above the pistol grip. The 590R series descends from a British MOD contract for a 590M Breacher gun. They needed a new safety to work with just a pistol grip. Mossberg has now brought that technology to the American market.
The tang safety remains my favorite shotgun safety, but it doesn’t work well with pistol grips. If you want a 90-degree pistol grip with an AR-style stock, then Mossberg safeties aren’t all that friendly. The new R models all feature an AR stock and pistol grip type configuration. These are inline stocks, and inline designs help reduce muzzle rise significantly and make a more controllable shotgun.
We get a standard 590R with a tubular magazine and a 590RM that’s magazine-fed. The 590R series also features flat triggers. Others feature Magpul MBUS sights, and both models are optics-ready and have an included rail. They have adjustable AR-type stocks, as well as heat shields. The standard 590R comes with a breacher-style barrel as well.
The New 590R Shotguns
Overall, I’m excited to see Mossberg grow the 590 line in any direction. The 590R series is a considerable move from Mossberg. While these won’t replace the standard tang safety guns, they supplement them and offer a new option. AR shooters will likely enjoy the design not just because of the safety but because of the pistol grip and stock design.
The AR-type stock and pistol grip do have some benefits. I’ve seen new shooters take better to the push-pull with a rear vertical grip. These guns tend to be easier to hold upright with one hand than a standard stock. Instant stock adjustments are admittedly nice and make the gun really easy to use between different shooters.
From the Mouth of Mossberg
NORTH HAVEN, CT – The ruggedly-built Mossberg 590® pump-action shotgun has been chosen for duty and home defense for decades for its reliability, performance, and wide range of configurations. This field-proven tactical platform continues to evolve and serves as an inspiration for Mossberg’s newest pump-action shotguns: introducing the 590R and 590RM (Mag Fed) 12-gauge shotguns with Rotary Safety Selector and AR-style ergonomics. New ground-breaking features include a redesigned user-serviceable forend, integrated barrel/single heat shield, and ambidextrous, rotary safety selector. Four models are available, including two standard offerings and two mag-fed versions, utilizing the first production double-stack magazines for pump-action shotguns.
Shared features of the 590 platform and the new 590R include non-binding twin action bars, positive steel-to-steel lock-up and anti-jam elevator, dual extractors, aluminum receiver, drilled and tapped receivers. Further enhancing the platform is a convenient clean-out magazine tube with cap for ease of maintenance.
Introduced in 2018, the Mossberg 590M Mag Fed shotgun shares key features with the new 590RM. At the core is the detachable magazine’s integral stabilizing ribs, which engage the magazine directly to notches engineered into the receiver for a positive lock-up. The lever-style magazine release button and mounting guide are positioned in front of the trigger guard for ambidextrous access. Accessory magazines are available in 5, 10, 15, and 20-round capacities.
Key Features of the 590R and 590RM Pump-Action Shotguns:
- Ambidextrous, rotary safety selector with protective guard that can be reached without breaking grip.
- Mossberg-designed stock with five positions of adjustment (12 – 15.25 inches), interchangeable recoil pad, and 2-sided QD cups. The front QD cup is located on the mag cap.
- Stock/Base Adapter is compatible with other grip designs. Accepts most Mil-Spec stocks.
- Magpul® MOE+® pistol grip.
- Compact, ergonomically shaped forend with new 4-piece attachment that is user serviceable.
- 18.5-inch barrel with integrated heat shield that is removable (standard and stand-off versions).
- Front M-LOK® adapter with dual sided accessory mounting slots at 3 and 9 o’clock positions.
- Flat profile trigger with smooth, crisp break.
- Top Picatinny rail for ease of adding optics. Optional Mapgul MBUS® 3 sights on select models.
- Enlarged, beveled loading port with extended follower for ease of loading (590R only).
- Elongated bolt release.
- Electroplated internal and external receiver for durability and smoother finish.
Mossberg 590R (50762/50761)
The 12-gauge, 3-inch standard versions feature an 18.5-inch barrel with integrated heat shield, compact forend, 5-position adjustable stock with interchangeable recoil pad, MOE pistol grip, Picatinny rail, flat profile trigger, rotary safety selector, and other key features noted above. SKU 50762 has Magpul MBUS 3 adjustable sights with a mini top rail for front sight attachment and an AccuChoke™-compatible barrel (Cylinder choke tube included). SKU 50761 comes with an 18.5-inch stand-off, cylinder bore barrel.
Mossberg 590RM (50213/50218)
These 12-gauge, 2.75-inch magazine-fed pump actions feature an 18.5-inch barrel with integrated heat shield, compact forend, 5-position adjustable stock with interchangeable recoil pad, MOE pistol grip, Picatinny rail, flat profile trigger, rotary safety selector, 10-round magazine, and other key features noted above.
SKU 50213 includes Magpul MBUS 3 adjustable sights with mini top rail for front sight attachment and AccuChoke-compatible barrel (Cylinder choke tube included). SKU 50218 is equipped with an 18.5-inch stand-off, cylinder bore barrel.
The Mossberg 590R and 590RM pump-action shotguns with rotary safety selectors are another ground-breaking design from Mossberg. For more information on these models and the complete line of Mossberg tactical shotguns, please visit www.mossberg.com.
