I would love to hear Simon (all due respect, bro) explain how restricting guns from law abiding citizens will keep extremists from killing with guns.
1) the extremists can buy guns illegally off the street.
2) they can use pipe bombs, maltov cocktails, pressure cookers, etc.
If you take away the AR15 from law abiding citizens, you might as well take away all semi automatic pistols as well, since using them is a place like a nightclub will be almost just as deadly.
And what about shotguns? Most shotguns fit 6 rounds and you can them buy a side sleeve for easy reloading of six more rounds. Should we ban them as well? Sorry dove hunters (big here in Texas)! You can't dove hunt anymore!
To ensure that no one (except law enforcement & military) has semi automatic rifles, the government would have to order a seizure of all existing semi auto rifles & ammo. Will people comply? Will the criminals comply? Even if you got all the rifles out of the US, you would then need stronger border defense...to keep the ones from border countries out!
Can we please use some logic here and not just fear based rhetoric?