Extreme Impact Resistance-won't crack or break when dropped. Very resistant to harsh chemicals. Superior heat, cold and UV resistance-won't become brittle over time even when exposed to harsh environments or extreme cold. Translucent 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 loadedFeatures :Fits the Glock 17, 18, 19, 19x, 26, 34, and 45Compatible with Gen 1 through Gen 5 GlocksExtended 27-round capacityCompetition legal 170mmCompatible with most floor plates that fit Glock magazineEasy disassembly with our specially designed base plateErgonomically designed floor plate makes it easy to grab from mag pouchesLifetime Warranty