SE Asia ruined my confidence in staking all my cookies on anything AR, regardless of calibre. I know they say that most of the problems have been "solved" or whatever, but I still just can't seem to take them seriously. Just are not in the same class as an AK, FAL, M1, M14, and I suppose SIG, & HK battle rifles. In 0 to 600 yard terrain, a good AK would be hard to beat. If talking mountains or desert give me a FAL, M14, or M1 in that order.