The MHP system comes with various sized tensioners in different colors marked from 1-2 for the MHP 2.0 and 1-6 for the MHP 1.5.
Each tensioner is made to decrease the distance from the wall to the mag wall to provide a secure fit for the mag. The thinner the magazine, the higher the tensioner number you should use. Glock OEM mags rarely need anything more than #1 tensioner.
Installing tensioner
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