It's always good to put your best foot forward and you can do just that with the CO2 powered GLOCK 17 Gen 5 MOS airsoft pistol. This airsoft pistol comes with 4 MOS optic plates that fit the 4 most common pistol sight footprints. Powered by cheap and reliable CO2 and featuring a 17 round drop free magazine, and a threaded muzzle, this full blowback Gen 5 GLOCK 17 is the hot ticked for dominance on the airsoft field.