Shhrade did make at least one for the military as a parachute knife. It had a dayglo orange scales and two blades.One blade was a hook sharpened on the inside curv for cutting lines - usefull when...
It would depend on where you live. Laws regarding these things are usually by State or City.If you are 18 or over, though possibly you may not be allowed to buy one at all. Swiss Army knives, also...