Description
The Mossberg 590M magazine is a factory 10-round double-stack detachable replacement magazine built specifically for the Mossberg 590M mag-fed pump-action shotgun in 12 Gauge. Designed around the 590M’s proprietary magazine well, this genuine Mossberg mag keeps the world’s first double-stack detachable-mag pump shotgun fed and running.
The body is molded from high-impact black polymer with a proprietary self-lubricating finish for lightweight carry and corrosion resistance, paired with hardened steel feed components for reliable function with 2.75-inch shotshells. The double-stack tower geometry delivers the 590M’s standout 10-round capacity while keeping the profile compact enough to clear the triggerguard and feed smoothly.
This is a genuine Mossberg factory magazine (part 95138), making it the ideal spare or replacement for any 590M owner running the standard 10-round setup. The 590M platform also accepts Mossberg’s optional 5, 15, and 20-round magazines for those who want to change capacity.









