‘The Gunfighter | A Short Film by Eric Kissack (narrated by Nick Offerman)’:-

www.youtube.com/watch?v=cWs4WA--eKU - a 9 minute video at the MagnetFilm youtube channel. (NSFW - language)

The blurb:-

‘In a small town in the old west, a lone and weary gunfighter enters a saloon. As he walks through the room surrounded by the people of the town, a voice begins narrating the scene, telling us exactly who this gunfighter is. But unlike every classic western to use the narrator trope, the characters in this film can hear the voice.’