I just got one of the Leatherman MUT multi-tools, and I'm impressed with the quality. My stepson bought one to use while he's in the Marines, and he's used and abused his, and he has nothing but good things to say. This thing has just about every tool you might need for weapons maintenance and cleaning, as well as other stuff you might need for camping. there are lots of videos on Youtube, so have a look. Here is mine:
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I'd buy two if he made them...I have a Gerber and it's lasted longer than the two Leathermans I've used.
However, IMHO, the best would be an AK version of a Multitasker. I've discussed the idea with the owner and he doesn't think there's a market for a $150-180 multi-tool.