GG&G Mossberg 590 2 Sht Mag Tube

The GG&G Mossberg 590 2 Shot Mag Tube extension is purpose-built for operators and professionals who demand reliable firearm modularity. Designed for military, law enforcement, and home defense applications, this magazine extension addresses a critical operational need: extended ammunition capacity during sustained engagements. The Mossberg 590 platform remains one of the most trusted combat shotguns in service, and extending its tube capacity directly increases mission effectiveness and reduces the frequency of reloads under pressure.

This extension adds two rounds of 12-gauge capacity to your existing magazine tube, engineered from robust materials designed to withstand the cycling pressures of tactical shotgun use. Installation is straightforward for anyone with basic shotgun maintenance knowledge—simply field-strip your Mossberg 590 and attach the extension to the existing tube in minutes, no gunsmithing required. The compact profile (6.2 x 1.4 x 12.9 inches) maintains the weapon's handling characteristics while the 0.44 lb addition is negligible compared to the operational benefit gained. GG&G's manufacturing standards ensure zero compatibility issues with standard Mossberg 590 barrels and operating systems.

Law enforcement patrol officers, tactical team members, and home defenders benefit most from this upgrade, particularly in scenarios where barrel changes or extended operations demand higher round counts without additional gear. The extension is fully compatible with 12-gauge ammunition across pressure specifications and integrates seamlessly with standard Mossberg 590 furniture and accessories. Installation requires no specialized tools beyond what any responsible operator maintains in their maintenance kit, making this one of the most practical capacity upgrades available for the platform.