The M60 is an American general purpose machine gun introduced in the late 1950s and widely associated with the Vietnam War and later action films, especially the Rambo series. Its distinctive heavy firing rhythm made it a staple sample in games, movies and sound libraries. Online, short clips like this four second burst spread through soundboards and video edits, where creators reuse it whenever they need instantly recognisable automatic gunfire without building a full battle scene from scratch.