Yes start in Chicago, hundreds shot every year and what do we hear from the establishment media crickets!!!
I would buiild supper max prisons run by the military and start arresting those in the most violent communities 1st. 
Once we have arrested all those who will not comply with gun laws we go through every house in America and clear them of illegal weapons. Shut down gun factories and imprison repeat offenders indefinitely. 
Truly any other way would just be a waste of time and would just put guns in the hands of those who don't respect law and order. 
300 hundred million Americans built on a gun culture attached to !exico. 
Gun laws, truly what a joke lefties it's America!!!!