Automatic rifles are firearms designed to fire multiple rounds with a single pull of the trigger. They can continue to shoot as long as the trigger is held down, making them different from semi-automatic rifles, which require a separate trigger pull for each shot. These rifles are often used by military and law enforcement for their rapid-fire capabilities. The design of automatic rifles allows for a high rate of fire, which can be advantageous in combat situations. Common examples include the AK-47 and the M16. Due to their power and potential for misuse, automatic rifles are subject to strict regulations in many countries.