Automatic rifles are firearms designed to fire multiple rounds with a single pull of the trigger. They use a mechanism that automatically reloads the next round after each shot, allowing for rapid fire. These rifles are often used by military and law enforcement due to their effectiveness in combat situations. Common examples of automatic rifles include the AK-47 and the M16. These weapons typically have a detachable magazine, which holds ammunition and can be quickly replaced when empty. Automatic rifles are distinct from semi-automatic rifles, which require a separate trigger pull for each shot.