Is this the correct rail for PSO scope ?

My Romanian PSL 54C came with detachable scope. I'm trying to put it on Mosin Nagant or SKS. Is this rail in the link a href="http://www.amazon.com/UTG-Precision-Machined-Combat-Steel/dp/B002GO5WG0/ref=wl_it_dp_o?ie=UTF8&coliid=I20A2M1B6WEUKW&colid=2MXM00GC0Q9D9" rel="nofollow"http://www.amazon.com/UTG-Precision-Mach…/a is right one ?