My favorite sight ever was a set of cross-hair sight that I had when I was young. Made by martin, it was made from machined aluminum and the pins were flourescent so I could see them well enough to shoot well past legal shooting time. The thing I like about them most was that they were fixed using a dovetail mounting system that incorporated the Martin quiver. I can't find anything on the market that I like as well as that old system and Can't find used sets of them anywhere. They were durable, accurate, and bright, everything you can ask from a sight.