Be careful with the term, assault rifle. This term is fabricated by the anti guns, and there's no specificity to what features on a rifle merits this term. People see a black, military looking rifle and automatically thinks its more dangerous than a wood grained stock hunting rifle. A unmodified AR15 is no more dangerous than a semi auto hunting rifle. But the general public are trained by the media to recognize black guns as only combat weapons and not in any way tools.
Point taken, I don't claim to be a weapons expert either, I'll try to be more exact in terminology, but hopefully my meaning was taken as intended; i.e. to include guns that can fire quickly, accurately and without much preparation time