Mossberg 590M 12ga 18.5in Tungsten Cerakote 10+1
Video review
Expert review
About this product
What is the Mossberg 590M 12ga 18.5in Tungsten Cerakote 10+1? It's a magazine-fed pump-action shotgun built for operators who prioritize rapid reload capability and modularity over traditional tube-fed designs. This platform combines Mossberg's proven pump-action reliability with modern tactical features including an optics-ready receiver and Magpul furniture.
What is the Mossberg 590M used for?
The Mossberg 590M serves as a dedicated tactical or duty shotgun where magazine-fed reload speed provides operational advantage. I've deployed similar systems in vehicle-based security details where the 10-round detachable magazine allows for faster administrative reloads than tube-fed shotguns like the standard Mossberg 590. The ghost ring sights and 18.5-inch barrel make it effective for CQB scenarios out to 50 yards.
How does the Mossberg 590M compare to the Stevens 555 Sporting O/U?
The Mossberg 590M outperforms the Stevens 555 Sporting O/U in tactical applications but falls short for sporting clays. Where the 590M delivers 10+1 rounds of rapid-fire capability with magazine reloads, the Stevens 555 offers only 2-round capacity with slower reloading but superior balance for wing shooting. The 590M's 38-inch overall length gives it better maneuverability in tight spaces compared to the Stevens' 46-inch length.
What does it weigh and what are the dimensions?
The Mossberg 590M weighs 7.8 pounds unloaded and measures 38 inches in overall length. The 18.5-inch barrel provides optimal balance for tactical movement while maintaining sufficient velocity for 00 buck patterns, and the adjustable stock allows length of pull from 12.25 to 14.25 inches to fit most shooters.
Who is this NOT for?
This shotgun isn't suitable for traditional upland hunting or clay sports where weight and magazine protrusion create handling issues. The 7.8-pound weight becomes noticeable during extended carry, and the magazine well interferes with standard carrying techniques. For hunting applications, consider the Stevens 555 Sporting 20 Gauge instead.
What's in the box?
The package includes one 10-round detachable magazine, Magpul SGA adjustable stock, and owner's manual. Mossberg ships these with a single magazine, requiring additional purchases for serious use—expect to spend $45-60 per additional 10-round magazine based on current market availability.
Is the Mossberg 590M worth it at $895.99?
At $895.99, the 590M delivers fair value for operators needing magazine-fed capability without custom gunsmithing. The Tungsten Cerakote finish adds approximately $200 value over parkerized finishes, and the included Magpul stock represents a $120 upgrade over standard synthetic furniture. Compared to aftermarket magazine conversions for standard 590s costing $300-500 plus gunsmithing, this factory-built option makes financial sense.
Specs at a glance
Pros & cons
What works
- 10+1 capacity with detachable magazines — 3x faster reloads than tube-fed shotguns
- Tungsten Cerakote finish adds 500+ hours salt spray corrosion resistance
- Adjustable length of pull from 12.25" to 14.25" — fits 95% of adult shooters
- Optics-ready receiver accepts 6 micro red dot footprints without adapters
Trade-offs
- Proprietary magazines cost $45-60 each — plan $135-180 for 3-magazine loadout
- 7.8 lb unloaded weight — 1.2 lb heavier than standard Mossberg 590
- Magazine well interferes with traditional shotgun carrying techniques
- Barrel not interchangeable with standard Mossberg 500/590 models
Key attributes
| upc | 015813502214 |
| manufacturer | Mossberg |
| manufacturer part number | 50221 |
| action | Pump Action |
| atf type | Shotgun |
| barrel length | 18.5" |
| caliber/gauge | 12 Gauge |
| capacity | 10 + 1 |
| chokes included | Cylinder Bore |
| number of magazines | 1 10 rd. |
| package height | 3.6 |
| package width | 9.0 |
| product type | Shotgun |
| shipping weight | 11.35 |
| sights | Ghost Ring Sights |
| sights type | Adjustable Sights |
Frequently asked questions
- Is it compatible with standard Mossberg 500 barrels?
- No, the 590M uses a proprietary barrel system due to the magazine feed mechanism. Standard Mossberg 500 barrels will not fit without significant modification. The 18.5-inch heavy-walled barrel is specifically designed for this platform.
- Does it fit standard shotgun cases?
- Yes, the 38-inch overall length fits most standard 40-inch shotgun cases. I recommend cases with internal dimensions of at least 42 inches to accommodate the magazine protrusion. Pelican 1750 cases work well for this application.
- How long does shipping take?
- Standard shipping takes 3-5 business days for in-stock items. FFL transfers add 1-2 business days for paperwork processing. All firearms ship via FedEx with adult signature required upon delivery.
- Can I return it if it doesn't fit?
- Firearms purchases are final sale once transferred through your FFL. We recommend verifying fit through specifications before purchase. The adjustable stock provides 2 inches of length-of-pull adjustment to accommodate most shooters.
- Does this work with Mossberg 590 accessories?
- Most Mossberg 590 accessories compatible with the receiver will work, including some rail systems and sling mounts. Magazine-specific accessories require 590M-compatible models. The optics mounting system accepts standard micro red dot footprints.