That's what I thought at first too. Go to the source of the article and watch the video clip. It turns out that Tactical Firearms is a licensed manufacturer of NFA Class III items. The owner described the procedure and said that the receiver needed to be modified and some parts needed to be swapped in to make it fully automatic. Piers asked if it were legal to do so and the owner waffled a bit and said buying the parts was legal but if you had both the AR-15 and the conversion parts it was criminal even if you had not assembled the full-auto weapon. Piers said well criminals wouldn't care would they and the owner replied no they wouldn't.
The owner did a reasonably good job of presenting a second amendment case on things in general but I think he should have shut up about conversions, bump firing and slide stocks. There is no point in giving Morgan more information that he will never understand but will try to twist into a full auto weapon behind every tree.
Regards,
GtG
Agreed
FReegards