Mossberg 590M Mag-Fed 12 Gauge Shotgun 18.5" Barrel 10+1 Capacity

The Mossberg 590M revolutionizes tactical shotgun design with its detachable magazine system, eliminating the reload limitations of traditional tube-fed shotguns. This 12-gauge platform delivers rapid magazine changes and consistent feeding reliability that competitive shooters and tactical professionals demand.

What Makes This Different

Unlike conventional pump-action shotguns that require individual shell loading, the 590M accepts detachable box magazines for lightning-fast reloads. The magazine-fed system maintains the proven 590 action while adding tactical flexibility. Standard tube-fed shotguns require 8-10 seconds for a full reload, while the 590M accomplishes the same task in under 3 seconds with a fresh magazine.

Key Features

• Detachable 10-round magazine system with magazine release behind trigger guard
• 18.5-inch cylinder bore barrel optimized for defensive ammunition patterns
• Ghost ring rear sight with protective wings and front bead for rapid target acquisition
• Matte blue finish on steel receiver and barrel for corrosion resistance
• Black synthetic stock and forend with textured grip surfaces
• Dual extractors and positive shell positioning for reliable cycling
• Compatible with standard Mossberg 590 accessories and rail systems

The 590M maintains sub-4-inch groups at 25 yards with 00 buckshot, making it effective for home defense and tactical applications. Law enforcement agencies appreciate the magazine compatibility across multiple firearms, while competitive 3-gun shooters benefit from the rapid reload capability. The cylinder bore barrel patterns evenly with both buckshot and slugs, and the action cycles reliably in temperatures from -20°F to 140°F.

Technical Specs

• Gauge: 12-gauge, 2.75-inch chamber
• Capacity: 10+1 rounds with included magazine
• Barrel Length: 18.5 inches, cylinder bore
• Overall Length: 39 inches
• Weight: 7.25 pounds unloaded
• Stock: Black synthetic with 14-inch length of pull
• Sights: Ghost ring rear, brass bead front
• Safety: Tang-mounted ambidextrous safety
• Finish: Matte blue on metal surfaces
• Made in USA with limited warranty

The 590M represents the next evolution in tactical shotgun design, combining proven Mossberg reliability with modern magazine-fed convenience. Professional users and serious shooters recognize the tactical advantages of rapid magazine changes over traditional loading methods.