AK's can have their problems the same as AR's. Remember there are a lot of AK's floating around that were built from parts kits by people who really didn't know what they were doing. And they can look like AK's from various countries because they use some parts from those rifles.

Obviously some AK's are well built and robust. But others are trash. I know. I had one that I got as a 'bargain AK". Yeah right. About 500 rounds went through that rifle trying to make it right. It was hopeless.