Antique. 45-70 w/32 1/2" bbl experimental  type of triangular sliding ram rod bayonet. Gun has even blued finish, is mechanically good & has good bore w/walnut stock, 1881 cartouche & has hidden compartment butt stock for tools. Overall in nice condition & a nice example of a scarce Trapdoor model. Gun does have visible crack & repair behind lock on right side (see photos)