Automatic pistols are firearms that use the energy from firing a round to automatically cycle the action, eject the spent cartridge, and load a new round into the chamber. This allows for rapid firing with minimal manual effort, making them popular for self-defense and law enforcement. They typically have a magazine that holds multiple rounds, enabling the shooter to fire several shots before needing to reload. These pistols can be classified into two main types: semi-automatic and fully automatic. Semi-automatic pistols fire one round with each pull of the trigger, while fully automatic pistols continue to fire as long as the trigger is held down. Both types are designed for accuracy and ease of use.