Currently on mobile device so I go into more detail later. So this is an AR-15:
It is civilian and law enforcement rifle based of a military rifle. It lacks the same functions as an M4 and an M16. It's basically a gun you can build to fit your needs. It has been used in very few crimes in the US. Why do people want ban it? Because it looks like a military rifle.
High capacity "clips":
They called magazines. Second the 30 round magazine is actually standard capacity. Anything below that is considered low capacity.
This is a high capacity magazine. It hold 100 rounds of ammunition. Not something that is easily obtain and impractical to use.This is the mini-14:
It pretty does the same thing as the ar15. Even fires the caliber which is .223/5.56
Does it look like a scary military gun/deadly salt rifle? Nope, because it's not. You put it in your truck and kill coyote with it. Like the ar, you pull the trigger and a bullet comes out, not a stream of lead.
Highly destructive .223/5.56:
The round it self is a slightly beefed up .22. It doesn't blow houses, it doesn't smash walls, nor does it explode body parts. it pentrates, leaves a small hole and fragments inside the body
A dollar for reference