If they succeed in banning "assault rifles" they will move right on to something else, until there is nothing else to ban.
It is a waste of time to consider liberal claims that they don't want to ban all guns, it is a lie, they don't even like sharp points on knives.
"The semi-automatic weapons' menacing looks, coupled with the public's confusion over fully automatic machine guns versus semi-automatic assault weapons anything that looks like a machine gun is assumed to be a machine gun can only increase that chance of public support for restrictions on these weapons." -- Josh Sugarman, 1988, Violence Policy Center.