In case you’re still deciding whether to comment on the bump-fire stock ban, allow me to point you at 8 months worth of explanations of how this is a bad thing.
Barring an unexpected return of DC to this universe, the rule will be implemented. But let them know you’re watching. Give them a hint of what enforcing this could mean.
It ain’t over till it over;
http://thegunfeed.com/923-page-opposition-to-atf-bump-stock-ban-filed/