Pearce Grip PG1045+ Plus Extension Fits Glock G20/21/29/40/41 Polymer Black Finish

This extension replaces the magazine floor plate adding two rounds capacity to Glock factory M20M21M29M40 and M41 magazines. This unit is for use on high capacity magazines only it will not work on the 10 round M20 and M21 magazines. Not for use on Glock M30 10 round magazines.