I have never heard of that before, but apparently that law exists for a reason.
This thread was meant as kind of a funny ha-ha for those that shoot alot and frequently respond to threads asking about the best handgun for concealed carry & personal defense.
This weapon is a monster, and apparently illegal in Oklahoma.
That said, I would always rather be tried by 12 than carried by 6.
I don't care if using a piece of a car mirror that I broke off and applied as a knife is considered "unnecessary" - if it was what I had at the time, that is what I would use because me going home is more important to me than bad guy #1 going home.
While I would never plan, or condone planning, the use of a weapon as a personal defense item that was clearly against the law, if it was all I had at the time I was being pulled from the cab of my truck ala Reginald Denny, I would sure as hell use it.