Same awesome magazine... X 5!! If you're looking to load up on extended 40 round magazines for your 9mm double stack Glock we've got your back! These ETS (Elite Tactical Systems) magazines are affordable, reliable, and just what the doctor ordered! No longer do you have to suffer from anemic round count in your magazines, we have the cure! As my mom always says, "You can never have too much ammo!". -Fits the Glock 17, 18, 19, 19x, 26, 34, and 45 -Compatible with Gen 1 through Gen 5 Glocks -Base plates interchangeable with ETS line of 9mm double stack magazines -Easy disassembly with their specially designed base plate -Ergonomically designed floor plate makes it easy to grab from mag pouches -Lifetime Warranty