So I went to the range today and a guy on the lane next to me had an MP-5 going full auto. He was doing groups of 2-4 inches at ~60ft; dead on target. I figured he had to be law enforcement, but I didn't know you can use it off duty? I thought the law said you can only use it on duty. Anyways it was a sweet gun, and now I want one now! So is going into law enforcement is my only chance to get one here in Cali?