With all the out cry over weapons bans, assault weapons are already banned. By definition an assault rifle is a selective fire rifle. So what is a selective fire weapon you ask.
Selective fire means the capability of a weapon to be adjusted to fire in semi-automatic, burst mode, and/or fully automatic firing mode.
This definition is from the BATFE (Bero of alcohol tobacco firearms and explosives).
By this definition no AR15 or any weapon readily available is an assault weapon.
So any firearm that does not shoot fully automatic or in burst mode, class 3 NFA item(s), is an assault weapon. The national firearms act (NFA) banned the import and registration of fully automatic after May 19th 1986.