UMAREX GLOCK 17 GEN5 BLK .177 PELLET 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. GLOCK 17 Gen 5 Shoots .177 Caliber Pellets Full Size Drop Free Magazine holds 21 Pellets Powered by (1) 12g CO2 Blowback Action Adjustable Rear Sight Rifled Barrel Manual and Trigger Safeties Full Metal Slide Polymer Frame