I know the answer but I'll ask anyway the peep sight on gun is not factory ? when they installed they milled about 32nd grove to fit this to gun. If not original is it possible to fill with wield and rebelled a local gun smith says he can hide the milled slot by doing this . The rear sight is missing don't know what kind of sight winchester would have used on this gun . The saddle ring is missing as well . Here's a picture of the area in ??? Thanks for Any advice.