The Strike Industries Extended Magazine Plate for GLOCK™ G17 9MM / G22 .40CAL was designed to provide smoother magazine reloading through a slow drag / no snag design while maintaining maximum magazine capacity with any OEM GLOCK™ magazine. The Extended Magazine Plate provides an additional 6 rounds to any G17 GLOCK™ magazine in addition to adding plus 5 to any G22 .40 cal magazine. Included is our special steel locking plate. Compared to other magazine extension plates on the market, our steel  locking plate features a hook design which adds extra locking security to increase the durability of your magazine & extended magazine plate when fully loaded with rounds.  Our extended magazine plate provides better gripping and overall control along with increasing the overall efficiency of reloads. Give your GLOCK the extra rounds it deserves with the Strike Industries Extended Magazine Plate for GLOCK™ G17 9mm / G22 .40 CAL.