Aimpoint or EOTech mounted on a gas tube mount. You can co-witness with the iron sights.
Scopes are ungodly slow to pick up if over 2X, and defeat the purpose of an AK. Scopes are for precision, and the AK is not precision.
The red dots and holosights are lightning fast to acquire.
The Aimpoint PRO (patrol rifle optic) would be perfect for you.