Umarex is proud to bring airgun shooters the latest in officially licensed GLOCK airgun performance, the GLOCK G17 Gen 5 CO2 powered blowback action .177 caliber pellet pistol. Powered by affordable and reliable 12 gram CO2, this pellet pistol uses a unique belt fed magazine that allows for blowback action. Featuring GLOCK grip texturing and all other GEN 5 slide and frame characteristics, this pellet pistol offers airgun fans the latest in airgun and GLOCK design and function.FeaturesGLOCK 17 Gen 5Shoots .177 Caliber PelletsFull Size Drop Free Magazine holds 21 PelletsPowered by (1) 12g CO2Blowback ActionAdjustable Rear SightRifled BarrelManual and Trigger SafetiesFull Metal SlidePolymer FrameSpecificationsTRIGGER ACTION SinglePOWER SOURCE CO2AMMUNITION PelletTRIGGER ACTION Single