Thanks for the reply Jim, I like your site, if you took paypal I 'd have already broken at a weak moment or two

I've gone back and forth since I started this thread, almost ordering a TWS, almost ordering one of its close competition, almost just getting the sampson rail.. in the end I hesitate and change my mind. I read in a couple places that the TWS rail doesn't work well on a mak 90? Knowing it does would remove that particular doubt, i'd probably order one if I knew it would work. I do realize however, that there's no "exacts" with AK style rifles, I really won't know till I tried to bolt it up. J
Edit: ended up ordering a samson rail. It seemed to be the only mount without any complaints of it not fitting, and is fine for a redot, which is all I'm going to mount up for now. I'll post thoughts on the samson once I get it. J