MAG FEATURESSTANDARD MAGAZINES:Base plates interchangeable with ETS line of 9mm double stack magazines Due to the wide variety of extensions for Glock, our mag base is designed to be compatible with Glock extensionsEasy disassembly with our specially designed base plateErgonomically designed floor plate makes it easy to grab from mag pouchesGEN 2 (G2) MAGAZINES:Fits the Glock 17, 18, 19, 19x, 26, 34, 45 and 49New and improved internal geometry; increased feeding reliability across all ammo types including steel and aluminum casingsSmall changes in the external geometry allows better compatibility with 9mm AR and PCC Uses our new GEN 2 Base Plate that improves plate retention and eliminates potential separation on extreme impact Compatible with most floor plates that fit Glock magazine Compatible with Gen 1 through Gen 5 GlocksErgonomically designed floor plate makes it easy to grab from mag pouchesADVANCED POLYMER BENEFITSExtreme Impact Resistance won't crack or break when droppedVery resistant to harsh chemicalsSuperior heat, cold and UV resistance won t become brittle over time even when exposed to harsh environments or extreme coldTranslucent body allowing you to see your ammo count and type Creep resistant the feed lips and body won't spread when being stored long term even when fully loaded