To respond to Hale on Wheels:
The ban was bad because it was based solely on the looks of the rifle, such as pistol grip, flash suppressor, bayonet lug. The magazine ban is also a feel good measure. For example, take a Remington 1100, put a pistol grip and a large magazine extension on it, and suddenly it is an illegal assault weapon too. The function of the firearm remains the same, only external features make it illegal.
How many people have been killed with a bayonet attached to the rifle? Some have said that it could be used to launch a rifle grenade, such as those that were launched in WWII from a M1 Garand. Not only is owning a grenade or a grenade launcher a felony, but these type of grenades do not work on an AR-15 anyway.
A flash suppressor is not to eliminate enough flash that the enemy cannot see it, but to not ruin the shooter's night vision. There is still flash that can be seen. BTW, the "A2 flash suppressor" is not really a flash supressor, but a compensator - as refered to by Marine Corps manuals, but was illegal under this ban.
The pistol grip was alleged to make it easier to wield the weapon one handed to spray bullets, and to reload faster. This is a farce - it is tough to hold a 7. 5 lb gun by the pistol grip to fire, and for fast reloading the hand is moved from the pistol grip to grab another magazine, thus holding the rifle by the hanguard.
As for the magazine capacity - the only time that I have heard of someone using a large quantity of ammo is when some nutjob goes "postal" and decides to take a few people down with them, which always seems to happen in a state that does not allow concealed weapons to be carried by law abiding citizens (another topic in itself). People use high capacity magazines extensively in competitions and while hunting varmints, as well as defending themselves.
People tend to say that the general public does not "need" these firearms, and that the second amendment refers to the state militia (A well regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms, shall not be infringed. ) I submit that "free state" has NOTHING to do with a state (such as Washington, California, etc. ) but that it refers to a free state of being - free to live your life as you see fit. The national guard was not formed at this time (and not for many years) - thus the militia was, at the time the Constitution was written, believed to be pretty much every able bodied man (including teenagers). The general public needs these weapons for 2 reasons: Defending an attack on U. S. soil, and defending against tyranny.
Overall, there are conflicting studies as to whether the ban worked at all. The statistics are hard to determine correctly since the use of "assault weapons" as a term to try to track the type of firearm was difficult due to the changing of these features to comply with the law. For example, rifles named "AR15" were banned, so Colt renamed them to the "Match Competion H-Bar" and removed the bayonet lug and "flash suppressor" so the rifle is not an illegal assault weapon anymore and therefore not tracked as such.
And yes, many gun owners think that if you give them an inch, then they will take a mile - the original bill for the ban would have outlawed my hunting rifle since it is semi-auto and has a detachable magazine before the bill was reworked.