The M1 Garand was the standard United States service rifle for much of World War II, and its eight-round en bloc clip was designed to eject automatically with a distinctive ping once the magazine was empty. Soldiers and later audiences learned to recognise that sound from combat, newsreels and training films, and it became a shorthand for an empty rifle in popular culture. Modern war games, documentaries and reenactment videos keep the ping in use because it instantly tells viewers a weapon needs reloading, without any dialogue or on-screen explanation.