Gentlemen,

I had only spent time studying what I could see of the selector mechanism on the P. Oberhammer drilling but looking at the same gun, as posted on NE (Nitro Express Forum), I noticed what appears to be a double diopter in the tang. What do you think, am I seeing things? If that's what it is, it is a first for me. Perhaps I just haven't been around enough to have seen such a thing before.

Mark