Freedomoptics.com carries a tactical light thatn can be mounted on any AK, I believe it is also used by the Russian army or special forces.
LinkSince they are out of stock you may try tantal, he could have one in stock.
LinkI wouldn't buy any US optics when the real deal is so cheap, POSP 4x24 scope can be had for $100 or so! And a Kobra red dot which is used by the Russian special forces for $150-180. I just bought a PK-AS red dot which I haven't shot yet but Its outstanding. For $200 I think its a fair price.
www.posp.ru has some good deals on red dots, check them out.
If you really want to red dot an underfolder I would think the best best option would be a scout mount, I've heard good things about them. I've never really heard good things about scopes ontop of the gas port.
Here's the
LinkWell, good luck. I hope I gave u more options to look at!
Edited to Add:
This is what a real tactical AK looks to me:
Photo taken from tantal.kalashnikov.guns.ru!