Mossberg 590R/590RM: It's like Vegemite

mossberg 590r 590rm tactical shotguns overview

New for 2025, Mossberg expands its respected 590 lineup with two AR-style shotgun models—the 590R (tube-fed) and the 590RM (mag-fed). These tactical shotguns stand out with AR-style ergonomics and an updated design intended for professional and home-defense applications.

Below, we’ll break down what makes these pump-action shotguns stand out, their best use, potential dealbreakers, and how they compare to other tactical AR style shotguns.

Key Features and Specs

Here’s what you can expect from both models at a glance:

590R (Tube-fed):
- 12 GA, 3” chamber
- Capacity: 6+1 rounds
- Beveled loading port for faster, smoother reloads
- MSRP: $1,085

590RM (Magazine-fed):
- 12 GA, 2.75” chamber
- Capacity: 10+1 rounds (with magazine options of 5, 10, 15, and 20 rounds)
- Uses detachable double-stack magazines with the AK-style rock n’ lock engagement.
- MSRP: $1,190

Shared Features:

Ambidextrous Rotary Safety Selector, inspired by AR-15 rifles for intuitive operation.
Five-position adjustable stock with recoil pad and compatibility with AR mil-spec stocks and grips.
Picatinny rail on top for optics mounting (Magpul MBUS 3 flip-up sights on non-Stand-off models).
M-LOK slots for mounting tactical lights, grips, or slings.
Flat, crisp-breaking trigger.
Heat-treated aluminum receiver with steel-to-steel bolt lock-up.

Video by Mossberg Official

Why Should You Care?

Mossberg is no stranger to tactical shotguns, but these new models bring fresh solutions to common shotgun challenges, like balancing modern ergonomics with practicality. Here’s what sets them apart:

1. Rotary Safety Selector

The rotary safety selector replaces Mossberg’s traditional tang safety. Inspired by AR-15 controls, this safety allows users to toggle it without breaking their grip—the upgrade is introduced specifically for pistol-grip shotguns. It’s ambidextrous and intuitive.

2. Detachable Magazine Option (590RM)

Instead of relying solely on tube-fed reloads, the 590RM introduces detachable double-stack magazines in 5-, 10-, 15-, and 20-round configurations. The magazines are robust and center the weight closer to the grip. While magazine-fed shotguns can polarize the community, the versatility they offer for high-pressure or breaching scenarios is undeniable.

3. Ergonomic Enhancements

Here are design improvements that differ 590R and 590RM from other shotguns in the 590 series:

A redesigned fore-end offers a better grip and control.
A five-position adjustable stock and Magpul MOE+ pistol grip
Integrated heat shield to protect the hands during high-volume range sessions.
A flat-profile trigger enhances consistency in finger placement.

4. Tactical Customization

The M-LOK slots on the special adapted near the forend and top rail make both models highly customizable. Users can easily mount optics for precision shooting or add a tactical light for home defense.

MOSSBERG 590

$462.99

Price accurate at time of writing

Potential Dealbreakers

The Debate Around Magazine-Fed Shotguns: It’s impossible to talk about the 590RM without addressing the elephant in the room—mag-fed shotguns aren’t for everyone. Critics argue that the added weight and complexity sometimes outweigh the benefits. However, the 590RM minimizes these concerns thanks to its robust magazine design, centered weight distribution, and comparatively straightforward reloading. Sure, it’s not perfect for all use cases, but for niche applications like breaching or professional environments, the magazine system shines.
Price Point: At $1,085 (590R) and $1,190 (590RM) MSRP, these shotguns land in the premium range. But for the features and versatility offered, they’re solid investments for anyone serious about tactical shotguns.

Applications—What Are They For?

For Home Defense: The compact design, AR-style ergonomics, and accessory mounts make these perfect for navigating tight spaces while maintaining firepower.
For Tactical Use: Developed with input from special operations forces, the Stand-Off models feature a breaching-style muzzle device.
For Collecting: If you’re looking for a unique addition, the rotary safety and innovative design make these a standout in the Mossberg family.

How the 590R/590RM Stacks Up Against the Competition

Mossberg 590M

The 590RM builds on the innovations introduced in the 590M, Mossberg’s original mag-fed shotgun. While the 590M also offers impressive usability, the 590RM improves upon it by adding the AR-style rotary safety and an overall more ergonomic design tailored for tactical operations.

MOSSBERG 590M

$581.99

Price accurate at time of writing

Beretta 1301 Tactical

Considered one of the finest tactical shotguns available, the 1301 Tactical boasts unmatched reliability, a lightweight build, and an incredibly smooth semi-auto system. However, it’s pricier than the 590R/590RM.

BERETTA 1301 Tactical

$1,620.00

Price accurate at time of writing

KelTec KSG

This quirky option offers high capacity (14+1 rounds) with its dual-tube system and a compact bullpup design. However, it lags behind in overall ergonomics, reload ease, and reliability during extended shoots.

KEL-TEC KSG-NR

$765.99

Price accurate at time of writing

KEL-TEC KS7

$526.99

Price accurate at time of writing

VR80

A semi-automatic option featuring an AR-style design, the VR80 boasts great ergonomics and modularity. The 590RM’s simpler, pump-action mechanics could appeal to users looking for a more straightforward tactical firearm.

ARMSCOR VR80

$599.00

Price accurate at time of writing

KUSA KS-12 and Saiga 12

These magazine-fed, semi-auto shotguns dominate in terms of aftermarket availability and firepower. Yet, Mossberg’s pump-action 590RM benefits from better recoil control, often making it a smarter choice for users focused more on precision than spray-and-pray scenarios.

Let us know in the comments what you think about the new Mossberg shotguns and AR-style shotguns in general.