I believe it is for an SKS with that small metal strip on the left side, like mine (type 89 with the 2.75 X 18 scope). I am looking for one but have not seen one I want yet. The prices seem to revolve around $150.00 but it doesn't seem that many new ones have come up. If you are looking to sell it and it is in good condition, let me know. My 62 year-old eyes are having a tough time seeing the target beyond 30 yards.
Again, let me know your price and shipping if you are wanting to sell it.
I have seen them listed for anywhere between $150 and $300. I guess it depends on how good the condition is.
I don't have any first hand knowledge of scopes on SKS's but I have heard others state they can never get their scope to hold zero because it's mounted right on top of the receiver.