I’m waiting with bated breath for you to enlighten me.
To make it as short as possible, the definition of an automatic firearm is one that fires multiple rounds with a single pull of the trigger. The ATF, originally and under current law, issued an interpretation that “bump stocks “ did not alter a weapon that would make fire multiple rounds with a single pull of the trigger. Is your breath still “bated” (whatever that is)? A 1 minute internet search will verify this.
http://www.slidefire.com/files/BATFE.pdf