I had an AO Ghost ring on my 1895 45/70 and took it off. Accurage enough at the range, but difficult for me to get a good quick shot at game with the front post design. I think there was just too much front post - too wide and too tall. It was a patridge style, black with a white center stripe.
It also turned out to be more expensive than a Williams b/c I had to buy several front sights of different heights that were fairly expensive. I ended up buying the tallest one and filing it down. Now adays, AO Sights/XS Sights sends a plastic front sight for you to sight in with. When you get the right height, you have them send you a metal front sight.
It would seem to me that if they are selling a sight for an 1895 45/70 with a 22" barrel, they should know which front sight you need. They would not exchange the front sight I bought for another front sight of a different height. Just buy another one and guess.
I also did not like the windage/elevation adjustments. They were not repeatable and you had to loosen one screw and tighten the other, shoot , check and repeat. You have to loosen one of the windage screws to adjust the elevation and then your windage might be off when you tighten it back down.
It seems to me that the Williams and Lyman sights with micrometer 1/4" clicks would be a better setup. Also next time I'm going with a fiber optic round dot for the front.