AK-47 Scope Mounts
Here are a few examples. Frankly, the Russian surplus is the best choice. UTG is usable, but was made for Airsoft. Unless you have a poorly made rifle, it will hold 2MOA with decent ammo (Winchester White box, or similar).
The most significant problem is offset- your scope will be much higher than the bore. Do some research on optics mounting, before you buy. Cheap option: the Simmons 44mag, or similar. Moderate-to-high-end: Burris Fullfield or Signature.
Get on getoffthex.com and warriortalk.com and read up on the AK boards.