This thread gives me so many ideas. Anyone else interested in making ballistic knives? I'm mostly into siege weaponry, bombs, (though I'm not stupid enough to make em) and melee weapons, mostly spears. But! ballistic knives are one of those ranged weapons that are so elegant it hurts me to think that they're illegal. In case anyone doesn't know, they are knives with springs or Co2 in the handle that can launch the blade up to 20 yards effectively. I hate not being able to tinker with an idea like that. Although, a sleeve arrow, the same concept but with arrows instead of blades, doesn't have the same kind of laws covering it, I nearly killed myself just fiddling with the concept, so I guess the regulations are justified, kinda. What's the worst accident anyone's had making a weapon?