I dont know if it was mentioned but Arsenal sells a nice AK chambered in .223, since you've got an AR already, go to http://www.k-var.com/shop/ I know they sell one in .223 or www.armarifle.com both of these sites sell a little higher end AK, or you can go the cheaper route also, either way the AK will not let you down.

I love my AK which is chambered for the 7.62x39