Universal Minishell Adapter/Mag Follower Kit for Mossberg Pump Shotguns

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  • $25.00
  • Regular price $30.00
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Read the "Truth About Guns" Gear Review here!

This kit essentially provides a conversion to 590S functionality, but in a more robust design.  It contains our patented 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.  Not compatible with 590R.

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) 


Customer Reviews

Based on 80 reviews
96%
(77)
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S
Sweet Lew
Easy Peezy

Install with the help of their YouTube video was easy peezy. Product fit and finish were great. Product seems to perform as advertised. Happy with the purchase.

V
Victor Hansen
Works perfectly on the 590 shockwave.

Installation was very easy.
I loaded the shockwave with a variety of shells and they loaded and ejected
smooth as glass.
So far I am very satisfied.

L
Lutch
Good buy

Easy enough to install. It cycles through the shells just fine. It will cycle through whatever combination of shells I put in.

D
Daniel Brooks
Good on all shells

Mounts easy in gun. Tried all length shells and it works great on all. I even ordered another one for my other Maverick 88. Thanks

J
Jan-Arndt Pohlmann
Smart little tool, huge impact

The installation instructions are easy to follow. I have limited gun smithing skill but the video took very well care of me. The adapter works very well in my Shockwave gen 1 and Maverick 88 security (12+1 in mini shells, hohoho). Excellent upgrade that is a must . Get it done, people!