Speaking of LE We had a sub gun match years ago and 3 FBI HRT guys showed up with there Stuff.
I spent some time with one of them (At this times Ruby Ridge & Waco was running though my head)
But this agent was OK he practically begged me to shoot his MP5/10.
And when I ask him about the public owning c3 He said that if you were legal everyone should have one that really blew my mind.
He also told me that i should custom my MP5 with this and that I said that's easy for you all you have to do is ask for it he said true but when he left the HRT team he would have to turn in his sub gun but I could still have mine
Them MP5/10 really do a job on pepper poppers

Yep.  Shot one a while back.  

Definatly a cool SMG.