I had a crazy dream last night:
The sky was all yellow, and it was fall out, and me and a police officer were having a cigarette on my front porch (i dont smoke) watching my neighbor's dog play, when this creepy little woman with a bob style hairdo came out from around a pine tree and proceeded to creep around my yard. apparently my brother randomly appears and begins following this little woman around, while the officer and i watch. suddenly she pulls out an MP5SD and begins firing. My brother vanishes somewhere, and the police officer and I both draw pistols, but they are both unloaded and missng magazines. We go into my house to retrieve a rifle but it takes SO long to unlock my vault, get a loaded magazine and get the gun into action.
Then, for some reason, an alien spaceship is spotted in the sky, but when it lands, it turns out to be a drum synthesizer, and I cannot figure out how to unlock its mysteries. Then I woke up.
ETA: sorry, that had nothing to do with your 5.56mm/AK question.