Mossberg 590M 12 Gauge 18.5in 10+1 Tungsten Cerakote
About this product
The Mossberg 590M is a magazine-fed pump-action shotgun designed for duty and home defense applications with an 18.5-inch barrel and 10+1 capacity in Tungsten Cerakote finish. It combines Mossberg's proven pump-action reliability with modern magazine-fed convenience and corrosion-resistant coatings. This configuration includes Magpul furniture and optic-ready mounting for serious defensive use.
What is the Mossberg 590M used for?
The Mossberg 590M serves as a duty-grade defensive shotgun optimized for law enforcement, security details, and prepared civilian home defense. Its 18.5-inch barrel keeps overall length at 39.5 inches for maneuverability in vehicles and structures, while the 10-round magazine capacity exceeds most tube-fed shotguns. The ghost ring sights and RMSc optic cut allow for rapid target acquisition under stress.
How does the Mossberg 590M compare to the Stevens 555 Sporting O/U?
The Mossberg 590M delivers superior tactical performance compared to the Stevens 555 Sporting O/U, though it sacrifices sporting elegance. Where the Stevens excels at clay targets with its 30-inch barrels and balanced handling, the 590M provides 10+1 rounds of 12-gauge on tap with faster reloads via detachable magazines. For defensive scenarios, the 590M's magazine system and accessory rails make it objectively more capable.
What does it weigh and what are the dimensions?
The Mossberg 590M weighs 7.5 pounds unloaded and measures 39.5 inches in overall length with its 18.5-inch barrel. The adjustable Magpul SGA stock allows length of pull from 12 to 13 inches, accommodating most adult shooters. The receiver width measures 1.5 inches at the optic plate, compatible with micro red dots like the Holosun 507K.
Who is this NOT for?
The Mossberg 590M is not suitable for hunters or sport shooters seeking a traditional shotgun experience. Its magazine-fed design adds bulk compared to tube-fed shotguns like the Mossberg 500, and the 18.5-inch barrel limits effectiveness beyond 40 yards. Those preferring lightweight upland guns or classic aesthetics should consider the Stevens 555 Sporting 20 Gauge instead.
What's in the box?
The package includes one Mossberg 590M shotgun with one 10-round detachable magazine, Magpul SGA stock set to 12.5-inch length of pull, and owner's manual. Unlike some competitors, it does not include additional magazines or optic mounting hardware—expect to purchase those separately. The Cerakote finish requires no additional protection out of the box.
Is the Mossberg 590M worth it at $784.99?
At $784.99, the Mossberg 590M justifies its price for users requiring reliable magazine-fed shotgun performance. Compared to converting a standard Mossberg 500 to magazine feed (which costs approximately $300 in parts alone), this factory-built system offers proven reliability and warranty support. For those needing tactical readiness without custom gunsmithing, this represents fair value.
Specs at a glance
Video review
Pros & cons
What works
- 10+1 capacity exceeds most tube-fed shotguns by 4 rounds
- Tungsten Cerakote finish provides 500-hour salt spray corrosion resistance
- Adjustable length of pull from 12 to 13 inches fits 95% of adult shooters
- RMSc optic cut accepts micro red dots without adapter plates
Trade-offs
- Proprietary magazines cost $45 each versus $25 for AR-style mags
- 7.5-pound weight is 1.2 pounds heavier than tube-fed Mossberg 500
- No included sling mounts require $30 aftermarket solution
- Magazine release button requires deliberate pressure to prevent accidental drops
Expert review
Key attributes
| upc | 015813502191 |
| manufacturer | Mossberg |
| manufacturer part number | 50219 |
| action | Pump Action |
| atf type | Shotgun |
| barrel length | 18.50" |
| caliber/gauge | 12 Gauge |
| capacity | 10 + 1 |
| number of magazines | 1 10 rd. |
| package height | 3.7 |
| package width | 9.0 |
| product type | Shotgun |
| shipping weight | 10.15 |
| sights | Ghost Ring Sights |
| sights type | Adjustable Sights |
Frequently asked questions
- Is it compatible with Mossberg 500 barrels?
- No, the 590M uses a proprietary barrel system due to its magazine feed mechanism. Standard Mossberg 500 barrels will not fit without modification. Expect to use only Mossberg 590M-specific barrels, which currently come in 18.5-inch and 20-inch lengths.
- Does it fit standard shotgun racks?
- Yes, the 590M fits most standard shotgun racks designed for 18.5-inch barrel shotguns. The overall width with magazine inserted is 3.2 inches, which may require slightly wider spacing than tube-fed shotguns. Most patrol car racks accommodate it without issue.
- How long does shipping take?
- Shipping typically takes 3-5 business days for in-stock items via FedEx Ground. All firearms ship to your selected FFL dealer, who must be verified before processing. Expedited shipping is available for an additional $45 through Ironclad Armory.
- Can I return it if it doesn't fit?
- Firearms sales are final once transferred through an FFL, per ATF regulations. Ironclad Armory allows returns only for manufacturer defects within 30 days. Ensure your local FFL can receive the shipment before purchasing to avoid complications.
- Does this work with Holosun red dots?
- Yes, the RMSc-cut receiver accepts Holosun 407K, 507K, and EPS Carry models directly. No adapter plates are needed for optics weighing under 1.5 ounces. Heavier optics may require additional mounting hardware due to the pump-action recoil impulse.