Be prepared for whatever may come your way by picking yourself up a spare magazine for your compatible Glock 19X 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 19X. A single 12g Co2 cartridge powers this magazine, which is housed directly inside and can be adjusted by sliding off the tan base cover and using the included tool. Stock up on everything you need for those extended training sessions, and get yourself a spare 18 round magazine today.