The GLOCK 19 .177 calibre air pistol is ideal for target practice and handgun training, as it closely duplicates an authentic GLOCK firearm. The slide is made of metal, the frame is made of polymer, and it has a trigger blade safety like the original GLOCK pistol. This airgun uses a 12g CO2 cylinder, housed in the grip, to propel steel BBs up to 410 fps. The detachable magazine holds 16 BBs (not included). This is an officially licensed product of GLOCK.