Go to: http://townhall.com/tipsheet/katiepavlich/2013/01/24/feinstein-goal-is-to-dry-up-the-supply-of-weapons-over-time-n1496561 and read about other provisions of Feinstein's bill. One is that a weapon that has one miltary characteristic will also be banned. That would apply to many semi-automatic handguns and rifles that are currently legal and definitely NOT assault-type weapons.
This is, ultimately, nothing more than an attempt to completely disarm the civilian population. And, if your believe otherwise, you are fooling yourself.