ok thanks, one more question, how about the beryl style ? like the 1 from css? it fits into the rear sight. -thanks
Nope, gotta remember how long the PSL's dust cover is.
www.kalinkaoptics.com is where you need to go. POSPs will be a step above most american glass, and NPZ's PSO will be quite a lot better.
I can't imagine a reason why someone wouldn't want to use the right optic on these guns. Hmm crappy barska for $200 or excellent POSP that's intended for the gun... Hard choice.
Regardless what you get, remember to go with the SVD mount. It sits lower and it won't fall off