A percussion pistol called the Mang in Graz De Luxe.
This mod adds in a custom modelled and textured Mang in Graz Deluxe percussion pistol. It comes with unique static and sound entries (with custom sounds as well!), as well as having it added to the appropriate weapon, repair, vendor, and levelled lists.
As it is a black powder percussion gun, there are no appropriate animations or ammo types. A semi-appropriate animation and a caliber has been assigned to it for the lack of a desire to create a new ammo type and inability to create new custom animations.
It can be found on top of Doc Mitchell's stove.