ProMag Industries 7 Round Shell Holder

The ProMag Industries 7 Round Shell Holder is a precision-engineered side-mounted ammunition carrier designed for Mossberg 500 and 590 shotgun platforms. Built for tactical operators, law enforcement personnel, and defensive shooters who demand reliable access to additional firepower, this shell holder bridges the gap between magazine tube capacity and sustained engagement capability. In high-stress situations where reload speed directly impacts outcome, having seven rounds immediately accessible at the receiver eliminates fumbling with belt carriers or ammunition vests.

Constructed from precision-molded polymer and reinforced with an aluminum mounting plate, the ProMag AA113 delivers durability without adding significant weight to your shotgun's handling profile. The carrier's engineering minimizes shift and rattle during movement, critical for tactical operations where equipment discipline and weapon control are non-negotiable. A patent-pending retention adjustment system allows operators to dial in shell security relative to individual preferences and deployment conditions—tighter retention for dynamic entries and vehicle operations, or slightly looser adjustment for high-volume training cycles where speed matters more than absolute rigidity.

This accessory is purpose-built for Mossberg 500 and 590 model shotguns, mounting directly to the receiver side without modification to your firearm's ergonomics or sight plane. Installation is straightforward and requires no gunsmithing, making it ideal for both duty weapons and home-defense platforms. Whether deployed in breach operations, patrol response, or personal protection scenarios, the ProMag Industries 7 Round Shell Holder transforms reload efficiency and gives operators the additional round count necessary for extended engagements without fumbling or secondary equipment dependency.