I have a 8x 42 POSP from a Romak PSL, I used to own. The bell is too big to mount on a Saiga with the iron sights in place. You would have to grind down the sight base and remove the sight leaf to mount it properly without running the scope tube into it, although the mount would fit the rail just fine. I suggest sticking to a 24 mm objective in order to avoid mounting issues. I plan to mount a Leupold 4X 32mm to a sight base and use that. If anyone is interested in a 8x 42 POSP from Kalinka Optics, let me know.