Mossberg 590S 12 Gauge 20″ Barrel 7+1/8+1/13+1



The Mossberg 590s pump-action 12 gauge shotgun brings legendary reliability to a tactical 41″ package. The 590s includes all the features that have made Mossberg pump-action shotguns the choice for millions worldwide like an ambidextrous safety, dual extractors, positive steel-to-steel lockup, twin action bars, and a smooth operating anti-jam elevator ensure reliable operation. This mid length shotgun is a fantastic option for home defense, as a truck gun or just for fun at the range. The 590s is capable of chambering 3″ or 2.75″ shotshells and 1.75″ “Mini-Shells” with up to an 14-round total capacity and features 14-inch heavy-walled, cylinder bore barrel with single bead sight. The 590 has earned an outstanding reputation for rugged reliability among both professionals and civilians. The Mossberg 590s expands on that reputation with the added capability of cycling 3″, 2.75″ and 1.765″ shotshells including any mixture of shells you may use. This 20″ tactical version features Ghost Ring sights and an M-Lok compatible forend.


  • 20″ barrel delivers maximum muzzle velocity and accuracy.
  • Reliable and simple operation – The tried and true, 590 pump action operating system will feed and eject all types of loads reliably, under demanding conditions.
  • Ambidextrous Safety – The 590s tang mounted safety is easy to locate and operate under stressful conditions without moving your hands from the firing position.
  • Versatile loadouts – The 590s is capable of cycling 2.75″ and 3″ shells as well as popular and effective¬† 1.75″ “Mini-Shells”,¬† including a mixture of shell sizes.
  • Dual extractors, twin action bars, and an anti-jam elevator ensure smooth reliable operation.
  • Magazine clean-out tube with cap


  • Model: 590s
  • Caliber: 12 Gauge
  • Operation: Pump Action
  • Barrel Length: 20″
  • Barrel Type: Heavy-walled, cylinder bore barrel
  • Sights: Ghost Ring
  • Stock: Synthetic black stock
  • Forend: M-Lok Compatible
  • Weight: 7.25 lb.
  • Overall Length: 41″
  • Capacity: 13+1, 8+1, 7+1


  • Mossberg 590s Shotgun 20″
  • Cable Lock
  • Owner’s Manual
More Information
More Information
Product Name Mossberg 590S 12 Gauge 20″ Barrel 7+1/8+1/13+1
Action Pump Action
Barrel 18.00″ – 20.99″
Brand Mossberg
Caliber 12 Gauge


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Mossberg 590S 12 Gauge 20″ Barrel 7+1/8+1/13+1
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