If anyone is wondering, the rifle is a 1866 Krutzsch pump action rifle.
Wow, solid obscure ID. Not even so much as wiki article on it, yet it is legit. Not a fantasy rifle. It's not even listed under the wiki for pump action rifles despite what I just dug up and read; The Krutzsch rifle was in fact the first pump action weapon design in firearms history. Winchester then took said concept and, well, made history.