Hi,

I know this is an old thread, but I've been wondering the same. I used to shoot with a Martini, but I no longer have the rifle. The club I have joined have several (in various states of repair), but none has a rear sight.

Did you ever manage to make a sight adapter? It would seem doable to me. Not a particularly difficult design, but getting the tolerances right would need someone with good milling / metalworking capabilities and equipment. I don't think a 3d printer would cut it