I think this situation calls for evil, scary, black, semi-automatic assault rifles, chambered in 5.56 or 7.62, with detachable magazines [detachable drums for the truly evil 'rethuglican'], bayonet lugs, and pistol grips.
I also think the estates of the perps should be held responsible for not only the broken windows, but also the expended ammunition.
Amen to that, RO. My Class IIIs would relish the ‘workout’.