I just put a Rock Solid Inc mount on my M44, it is beast. Nice Mosin Nagant 91/30.
Edit: I agree with Wandall, a Weaver/Picitanny rail doesn't belong on a WWII rifle, but I like the fact that I can put any type of scope on it. I did put a PU 1in scope mount on my 91/30 and it looks pretty nice; I prefer the old style of scope mounts and the mounting process. Again I like the Saiga and the Mosin's.