Be prepared for whatever may come your way by picking yourself up a spare magazine for your compatible Glock 19 from UMAREX. Constructed fully from metal, this high quality magazine is realistically weighted and can withstand hard impacts during rough use. A high tension internal spring smoothly feeds the .177 caliber BBs from the magazine into the firing chamber of the G19. A single 12g Co2 cartridge powers this magazine, which is housed inside the pistol grip of the Glock 19. Stock up on everything you need for those extended training sessions, and get yourself a spare 15 round magazine today.