"Black Days" is a standalone game based on the Quake Engine aimed to make a fully new singleplayer campaign, featuring revamped graphics, new weapons and items, and a lot of other features powered by the DarkPlaces sourceport for Quake.
The Ruger "Red Label" is a double-barreled shotgun, featuring a vertical-oriented barrel layout. This weapon is used frequently in skeet shooting due to his great acurracy.
These are some screenshots of the "Red Label" while being modeled, meaning that this weapon will be part of the arsenal available in Black Days.