Mossberg 590M 12 GA 20-Round Magazine zoom in


Mossberg 590M 12 GA 20-Round Magazine

590M™ Series accessory magazines pack more rounds into shorter magazines - quickly and efficiently adding capacity.

The world’s first production double-stack 12 GA shotgun magazine offers a shorter magazine length vs. capacity than competitor’s single-stack designs.

  • Provides better swing, balance and control
  • Hardened steel feed lips
  • Over-molded steel shell ramps
  • Easy-grip external molded design
  • Proprietary self-lubricating polymer magazine body material
  • Heavy-duty ASTM-A-228 music wire magazine spring
  • Removable floor plate for easy cleaning
  • Tough black oxide finish on steel components
  • For use with 2.75" shotshells
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Since 1919, Mossberg® has been one of the leaders in introducing important design breakthroughs to the firearm industry. Many product features pioneered by Mossberg are now the standard by which all modern firearms are judged. Never content with the status quo, the men and women at Mossberg constantly strive to improve and update the capabilities of all their products. In accomplishing this goal, they recognize that each improvement is a part of the Shooting System approach, and most are designed to fit the shotgun you bought years ago.

Their designs and innovative edge are truly changing the way shooters use shotguns and rifles. They're particularly proud that the Mossberg pump shotguns are the only shotguns purchased by the United States government that meet or exceed Mil-S-3443 specifications. It is this basis of unquestionable quality that drives Mossberg to bring reliable, well-built shooting systems to you at an affordable price.
Description Magazine type / Capacity Price Qty


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20-round $119.99