Lie - it was for the newly-defined category of "assault weapons," which the gun grabbers wish to intentionally confuse with automatic weapons.
And according to Brenda Duety, the president of Don’s Guns, it is not difficult to buy flash suppressors illegally at gun shows.
False: There is nothing illegal about flash suppressors, only about attaching them to post-ban weapons. Felons may even legally own flash suppressors, so long as they own no weapons. This statement is merely added to convince the sheeple that gun shows are places rife with the possibility of criminal actions, which therefore need additional regulation.