[maltwhiskey]

Most firearm violence is committed using handguns and most illegal guns are obtained through straw purchases. The best thing we could do would be to implement universal background checks (i.e. require background checks for private sales) but in a privacy-conscious and convenient way that will maintain support from the pro-gun side. Some kind of app or mobile website that allows the background check to be conducted for free on a smartphone, perhaps using token-based authentication to avoid the need to share personal information.

People who sell guns want a way to perform background checks on the people they sell to, but there's no way to do it because only licensed dealers can access NICS. As long as the private background check system has the same privacy invariants as the existing paper system for dealers (primarily that it is not possible to look up which guns someone owns, only to take a serial number and see who owns it) there won't be significant opposition.