Spring Powered Airsoft Pistols are single-shot devices that use potential energy stored in a Spring to launch an Airsoft Pellet down the Barrel of the Airsoft Gun. You must cock a Spring Airsoft Pistol or Hand Gun prior to each shot much like you would a real Shotgun or bolt-action Rifle. This is typically achieved by pulling back the slide, which in turn compresses the Spring and makes the Pistol ready to fire. Because of this these, Spring Airsoft Pistols are incapable of Automatic or Semi-Automatic fire.