Guys go read his web site, I have heard of no resolution, some charges have been dropped but not all.
He basically sold 80% with letters of approval from the BATF that were FAKE. Had he contacted them first he could have gotten his own letters instead of copying someone else's letters.
His biggest problem was not paying income taxes on his money and telling an undercover agent he didn't have to pay taxes.
They were clearly 80% but when you don't pay taxes and lie about BATF approval for your product you are asking for trouble.
The build videos were produced by another guy and he got in trouble because they packaged both products together and he handled the credit card sales. I think the video guy will end up OK.
Edit; Here's his page; http://www.ktordnance.com/kto/
Also the Feds have dropped their charges in just New Hampshire that's still after him.