Is anyone aware of a Tang Sight available for the new manufacture Winchester 1873 rifles?

I tried the Marbles 009884 sight but it was intended for the Miroku mfg about a decade ago and requires drilling and tapping the tang.

I'm looking for a tang sight intended for the new manufacture winchester '73 that does not require any drilling and tapping. It was suggested the sight intended for the 19th century '73's would fit but this is only anecdotal. If anyone has a new model '73 and is using a tang sight, I'd appreciate your response.