What is it about AR-15's that make you believe it should be banned? Is it capacity issues? Accuracy issues? You think they are military guns? Just curious b/c it's articles like this one that make me wonder. I was too young to recall the issues with AWB in the 1990's, but it seems that was largely a political play.
http://www.nytimes.com/2014/09/14/sunday-review/the-assault-weapon-myth.html?_r=0
FWIW, I get the capacity argument to some degree, but then you have shootings like the VT massacre where semi-automatic pistols were used with 10 and 15 round mags. He just carried lots of mags. Ditto for Columbine. Then you add in the logistical fact that there are literally millions of these magazines already out there, it becomes a logistical nightmare. Finally, when similar bans were proposed in NYC a few years ago, I remember a problem stemming from the fact the ban would apply to law enforcement too, which was fought heavily over be law enforcement, arguing it would make the officers less safe. That raises the question of it wasn't safe for them, why would it be safe for the average person looking to defend their house? Seems to me this is about limiting the damage (not the occurance) of mass shootings, which is honorable. It's just doubtful it would change anything and it might make others less safe.