Rick's right, my AK wears a LaRue Tactical AK Iron Dot.
It works very well. Installing it is relatively easily, as all you do is remove the old rear sight leaf and replace it with the LaRue unit. However, getting that leaf off requires you to hold the rifle with one hand, compress the strong spring with a tool in another hand, and then push the leaf out with your third hand. The new base has two strong magnets on the bottom that help keep it down while shooting. The unit pivots out of the way for ease of cleaning. There's also a BUIS built into the unit for an absolute cowitness.
The actual optic is a Burris Fast Fire that holds zero, is lightweight, and is unobtrusive. Target acquisition is much faster than the standard notch and post sights. The dot auto-adjusts brightness depending on ambient light. I've used it in the dark and at high noon on bright days and never had a problem with the intensity.
You lose the range adjustment on the rear sight, but I never used it so I don't miss it. IMO, the AK is best used with an all-purprose battle zero, capable of hitting man-sized targets out to 300 yards. An 800m elevation is just plain silly. Zeroing the Fast Fire is a minor pain as there are no clicks and you have to "unlock" the adjusters, adjust, then "re-lock" them before shooting again. But, you don't have to do that all the time, so it's a minor annoyance.
The only modification I've made was to add a white outline to the rear leaf to help increase acquisition speed.
The price includes the mount and the optic, plus you get LaRue swag. If you don't want your Dillo Dust, send it here!