TargetTalk

I believe John is correct, I am about to order for my sons 1907, also, any suggestions for a spirit level? I am thinking seriously about the new Spy sight from central/MEC also, if anyone has experience with it let me know. Kevin

Conradin, My understanding of the Duplex in terms of purpose and function, is that it's meant to help align your eye with the rear sight. By adding an extra ring at the "front" of the rear sight, when your eye is lined up correctly, the rings appear concentric, as in the Duplex ring will ...