Item #:
015813502214
UPC: #:
015813502214
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Mossberg 590M Model 50221 12 Gauge Shotgun 18.5" Barrel 10+1 Black

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The Mossberg 590M revolutionizes tactical shotgun design with its magazine-fed system, delivering rapid reloads and enhanced firepower for law enforcement and civilian defense applications. This 12-gauge platform accepts detachable box magazines instead of traditional tube feeding, fundamentally changing how operators engage multiple targets.

What Makes This Different

Unlike conventional pump-action shotguns that require individual shell loading, the 590M feeds from detachable magazines that can be swapped in under three seconds. The dual extractors and anti-jam elevator ensure reliable feeding of 2.75" and 3" shells. Magazine capacities range from 5 to 20 rounds, providing significantly more firepower than tube-fed alternatives that typically hold 6-8 shells.

Key Features

  • Magazine-fed system accepts 5, 10, 15, and 20-round detachable magazines
  • 18.5-inch cylinder bore barrel optimized for defensive loads
  • Dual extractors and anti-jam elevator prevent feeding malfunctions
  • Heavy-walled receiver machined from solid steel billet
  • Ambidextrous safety located behind trigger guard
  • Picatinny rail on receiver for optics mounting
  • Ghost ring sights with protective wings
Field testing demonstrates the 590M's reliability across various ammunition types, from standard buckshot to specialty less-lethal rounds. The magazine system eliminates the fumbling associated with loading individual shells under stress. Law enforcement agencies report faster engagement times during building clearing operations, while competitive shooters appreciate the rapid reload capability for 3-gun matches.

Technical Specs

  • Gauge: 12-gauge, 2.75" and 3" chamber
  • Barrel Length: 18.5 inches, cylinder bore
  • Overall Length: 38.5 inches
  • Weight: 7.25 pounds (unloaded)
  • Capacity: 10+1 with included magazine
  • Stock: Black synthetic with textured grip surfaces
  • Finish: Matte black Parkerized
  • Safety: Ambidextrous tang safety
  • Sights: Ghost ring rear, fiber optic front
The 590M represents Mossberg's most significant tactical shotgun innovation in decades, combining proven pump-action reliability with modern magazine-fed efficiency. Professional users gain a decisive advantage in scenarios requiring sustained fire or rapid engagement transitions.