Gunfighter and gunslinger @r, are literary words used historically to refer to men in the American Old West who had gained a reputation of being dangerous with a gun and had participated in gunfights and shootouts. Gunman was a more common term used for these individuals in the 19th century. Today, the term gunslinger can be used to denote someone... Found on http://en.wikipedia.org/wiki/Gunfighter
a person highly skilled in the use of a gun and a veteran of many gunfights, esp. one living during the frontier days of the American West. Found on https://www.infoplease.com/dictionary/gunfighter