You have a model 1892 sporting rifle, standard version(24 inch round barrel, full mag, crescent butt). Looks like the barrel and mag tube have been cut because the barrel should be flat without any crown at all. The drilled action and doctored barrel pretty much destroy collector value but might make a good shooter if the bore is good and the barrel crown isn't buggered up. Value is probably around $400 IMO. The tang sight is a nice bonus worth around $150 by itself. Good that you have a mag tube as long as it is for the smaller calibre 1892, the .38/40 and .44/40 magazine is larger in diameter.