Universal Minishell Adapter/Mag Follower Kit for Mossberg Pump Shotguns

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  • $25.00
  • Regular price $30.00
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This kit essentially provides a conversion to 590S functionality, but in a more robust design.  It contains our patent-pending Universal Cartridge Adapter and low-drag no-snag Magazine Follower which allows smooth cycling of 1-3/4" Minishells up to 3" Magnum cartridges in the same magazine.  The adapter is constructed from vulcanized thermoplastic rubber, and the follower is machined from solid 6061-T6 billet aluminum.  This kit is compatible with any Mossberg 12-Gauge pump-action firearm with a 3" Chamber and machined grooves in the receiver.  Please refer to the picture below or the installation video below to confirm your firearm's compatibility.  

Please note there may be a short break-in period for some adapters after installation.  Cycle a few magazines of full-size shells if you initially experience issues with 1-3/4" shells, please reach out to us if problem persists.  

*The Cartridge Adapter and Magazine Follower are optimized to function as a pair, but the factory follower may function as well for those that do not wish to remove it.



 (PATENT PENDING U.S. PAT. OFF. 17693832) 

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