I found a removed weapon that was left-over by the devs in Call of Juarez: Bound in Blood in the ChromED Editor. Weapon name is Frontier in the editor menu, however when inspecting it in game - it says Border Gun. I have no clue, where it was used. It also was meant to be in Multiplayer, as string Net indicates that it appeared somewhere in Multiplayer.
My theory is that it was used for some kind of scrapped Multiplayer character (possibly a border guard, or a Sheriff)
Other theory is, that maybe it's from a removed mission that we never ever knew about. Very interesting stuff.
Screenshots:
