Obviously it depends on the jurisdiction.  A sales tax is a given, much like any other product purchase.  In Mississippi and other localities some of these taxes have been waived while in Seattle there is a tax on ammunition and weapons (certain types of guns) meant to offset gun violence costs to the city.  Perhaps we need to add a 5 cent per bullet tax to at the federal level and poor these funds into healthcare including mental health subsidies, etc.  

Solutions. Any ideas?