Nine states earn an A grade (in rank order): Arizona, Arkansas, Idaho, Montana, Oklahoma, South Carolina, Texas, West Virginia, and Missouri. These states share several characteristics: They allow firearm purchases without a permit, allow permitless carry for both open and concealed weapons, have firearm protections codified in their state constitutions, and have not banned semiautomatic weapons.
California ranks last among all 50 states, with the lowest possible score of 0, having imposed permit-to-purchase requirements, firearm registration, bans on semiautomatic firearms and convertible pistols, and its permit requirement for concealed carry. These states also receive F grades (in reverse rank order): New York, Connecticut, New Jersey, Massachusetts, Maryland, Hawaii, and Illinois.