O.k lets see, what you got is a mount that is designed to replace the rear reciever cover of anChina SKS or Yugo SKS etc....
The high rise rings, allow you to still use the open sights on this weapon.
Is this thefirearm your intending to use it on or are you using it on something else..
If this is all your doing, take the rear reciver off the SKS and install this one.
Youwill have to file(so file a little at a time at check for fit often)but its desigined to do the job well and hold zero with out a problem..
The lock studs alone will prevent the mount from rocking if used on this make of firearm.
Save your money first, go to the range and firea bunch of rounds, if your unhappy with the groups than make the decision.
Reason being, at least you didn't modify your gun if it happens to be a bad mount design to begin with, and the second
you didn't spend more than necceaary on your project if it does work.