I had a primitive Luftwaffe 'Swiss Officer'-style knife by comparison, but hat was back in the 90's before the world suddenly began to gadget-up everything.

Funny; with all the Pedantry, they forgot to take back said knife in the chaos of my last day in office. They checked the list without getting it. A comrade of mine had to hand it back. Still got it - as a kind of prize.

Related: Brace yourself for an awesome multi tool
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I did mention a ballistic boonie hat (don't think such a thing exists, though):
Does anybody know the weight of a state of the art ballistic helmet with coverage and protection of a 80's helmet and the NVG interface in front? Today's helmets are rated up to NIJ class II, which is in the corresponding German system 2 levels above mere fragment protection of old - necessarily with higher weight per area.