Military type weapons, long guns that were designed for killing humans. AR is an M-16 without the auto feature, unless you put a bump stock on it..
There are some humans that need to be killed. If you break into my house, if you threaten my life, if you attempt to rape my women, If you attempt to kidnap my children....You gotta go.
Since there are certain people that need to be killed, I'd prefer to kill them with an effective weapon. I'm not interested in getting into any fair fights.
All that ignores the real intent of the 2nd Amendment which was to protect against a government that has become tyrannical....another situation that calls for folks being killed.
Talking about these realities makes people uncomfortable but we shouldn't bullshit ourselves that it doesn't happen and won't continue to happen.