Tech-Sight who are well known for M16 style peep sight for the Ruger 10/22 will be selling an AK peep sight later this year.
It features a “GI” style post and aperture sight picture, return to zero system (presumably after the receiver dust cover is removed) and detent locking click adjustments. UPDATE: War Wolf called them and found out the MSRP will be $100 – $125.
I think this could be a very popular accessory, if the return to zero works as advertised. Peep sights are great, I learnt to shoot with a peep sight and still prefer them over scopes.
More info here.