I saw this coming a mile away.
We don't even know for sure how many bump stocks are involved.
I have read different accounts saying anywhere from 1 to 12 of the rifles had bump stocks and 1 to 10 of the rifles were fully auto. Unfortunately, this battle is already lost in the court of public opinion. It doesn't matter what the constitutional issues are, bump stocks are history as unregulated items. If we can make gains elsewhere, like universal reciprocity and deregulated suppressors, then let the bump stocks be a sacrificial lamb.
I think the absolute best we can hope for is that bump stocks become a Class III item.