Tim allow me to teach you the difference between Pre-ban ( Pre Assault Weapons Ban 1994 ) and Post Ban. Here's what a bunch of ignorant morons like you decided they wanted to ban from the AR15 in 1994
Flash hider - No AR15 in an " Assault Weapons Ban " configuration can have a flash hider , they can have muzzle brakes though , does this make the rifle any less lethal? NO
Bayonet lug - Yes alas you can't attach a bayonet to your AR15 post ban

because before the ban the was an apparent rash of people killing other people via bayonets

Collapsible butt stocks -

Does this reduce the rifles effectiveness? lol Their rational was they could make the rifle " concealable " LMAO I shit you not
At the same time they banned magazines over 10 rounds , however millions and millions of pre-ban 30 round magazines were made from the early 60s on so they're in abundance and cheap ( relatively speaking ) and that's it. Some states have slightly different " bans " like Cali and the absurd " bullet button " but that's the gist of it
The " Assault Weapons Ban " NEVER completely banned the rifle , just cosmetic features , the rate of fire is EXACTLY the same , it accomplished NOTHING and another new " ban " would do the same. We had people like you before making up these arbitrary rules based on fear and ignorance , maybe now you can grasp why law abiding citizens scoff at a new ban and people of your ilk deciding what we need and what we don't.