Took out my Commie guns last weekend. I knew the SKS's were way off and had suspicions for the AK. It was. Using a piece of cloth, tap and mallet, I got all of them horizontally zeroed but didn't have anything that would adjust the sights vertically. I knew that I wouldn't be the only person to have this issue and that someone would have come up w/ something. A quick google search showed me correct.
Tapco. About $15 through Amazon. There were cheaper ones available but I decided to spend the extra few bucks on a name I knew. This weekend I'll finish the zero-ing and then take my vengeance out on all those insurrectionist hedge-apples and chestnuts.