I dont know that I see a long-term future for lethal handguns, outside of the military and police establishments. Once the US subsumes it's independence to the will of The UN or some other globalist organization (most likely with China pulling the strings), they will slap crippling economic sanctions on America until private ownership of lethal weapons is totally proscribed. If we are lucky, the populace might be permitted less lethal weapons such as tasers or CS-projectors. Even local law enforcement will be severely limited in the selection of lethal weaons available to them- these will mostly be reserved for federal/ international peacekeeping forces to put down the occasional peasant, er, citizen uprising.
Criminal organizations will still be lethally armed, of course, since these are usually not a threat to the power of the regime, and often line the pockets of oligarchs and beauracrats to maintain their existence.
Dont like this prediction? Vote America First, buy American products, and dont let your kids get indoctrinated. There is still time, but the hour is getting late......