Quiggles09:
A rifle is a weapon. An assault rifle is an assault weapon. Its not true that a weapon need be fully-automatic to be considered an assault weapon. An AK-47 variant restricted to semi-auto fire is still an assault weapon, designed to engage multiple targets at range in short time. In fact, competently fired semi-automatic weapons can be deadlier than fully-automatic weapons, which is why 3-shot burst is increasingly favored in military weapons. This is exactly why a Federal Assault Weapons ban is needed. Too many of these cheap Soviet Bloc knock offs can be modified to reduce the trigger pull and increase effective rate of fire. This, combined with the magazine capacity (30) makes the distinction between semi- and fully-automatic negligible.
And just to be clear, I wasn't referring to your post when I mentioned reactionary idiocy (i.e. concealed carry should be allowed in malls, more guns is the solution, ect). However, I do think you are wrong about the reasonable classification of the weapons in question, and are employing a semantic argument.
Its not true that composite materials don't make a weapon deadlier. They make it lighter to carry, easier to conceal and wield, and allow the shooter to carry more ammunition. The instance of a flash suppressor and bayonet mount put the lie to what this weapon is really for: warfare.
The combination of all of these features and factors make such a weapon a de facto weapon of assault, which is exactly how Hawkins employed it, apparently shooting some at range, firing many rounds. This is exactly why Congress banned such rifles, pistols, and associated accessories, because they constitute a weapon that is not for personal self defense or hunting, but for killing multiple people in short order.