I bought the above sight for my Miroku 1873 several years ago and it didn't quite fit but I made it work with a washer. I'm tired of the washer now and have ordered the correct sight. Since it's been a couple years, so I'm not gonna send it back, I'm gonna sell it. It is Marble Improve tang sight #991001. Fit's Uberti 1873, 1885 and many others, just not mine. Check Marble's site to see if it fit's your's. Price is $65 shipped to the lower 48. PM if interested.