First off, let me come out----I love my AKs! That said every AR I've ever owned (currently own 4) has been extremely reliable as long as they are properly cleaned/lubricated. Most who post about ARs that are unreliable are referring to some sort of torture test; not exactly applicable for the average AR owner. I have two ARs that have never had a malfunction through thousands of rounds of cheapo Bear ammo so far and I wouldn't be surprised at all if they make it to the 10k mark without a hiccup.
Thanks for the field report.