I have a Gerber fixed-blade knife with a 4" blade that I'd really like to carry concealed sometimes. Though, it is my understanding (well I am not going to try to test it out) that all-fixed blade knives are illegal. The law is extremely vague on this. Here is the exact knife, btw: Gerber Profile Drop Point with Sheath - #22-01795 : Gerber Knives - at Rocky National What do you guys know? Or, do you know who I can call to find out (ATF maybe)? Thanks.