An automatic pistol is a type of handgun that uses the energy from firing a round to automatically cycle the action and load the next cartridge. This mechanism allows for quicker follow-up shots compared to manual-action firearms. Most automatic pistols are semi-automatic, meaning they fire one round with each pull of the trigger. These pistols typically use a magazine to hold multiple rounds, which can be quickly replaced when empty. Popular models include the Glock 17 and Beretta 92. Automatic pistols are widely used by law enforcement, military personnel, and civilians for self-defense and sport shooting.