This Glock Factory magazine extension will enable you to add two rounds of 9mm or one of .40 & .357SIG caliber to your Glock factory magazines. It must be used with the insert plate pictured above.
Simply remove the standard magazine base plate and install this factory +2 extension along with the factory magazine insert plate and increase magazine capacity instantly. This +2 mag extension also helps shooters get a better grip on the Mini Glock 26, 27 or 33.
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