Rather than trying to limit access to or take guns away from law-abiding adults, we must instead insist that the adult responsible for a gun at an instance (maker, seller, or buyer) have enough liability insurance to cover
the harm that could result if that adult misuses it or lets it reach the wrong hands.
Insurance is very effective in getting people to adopt safe practices in return for lower premiums.
Like other insurance, firearm insurance will be provided by a private firm. That's it. No mass or government registrations. Except for defining the rules, no government involvement at all. Each owner selects his or her insurance firm.