See our Dealer Regulations Policy Summary for a comprehensive discussion of this issue.
Federal law requires firearms dealers to obtain a license from the Bureau of Alcohol, Tobacco, Firearms & Explosives (ATF), although resource limitations prevent the ATF from properly overseeing all its licensees.
Arizona has no law requiring firearms dealers to obtain a state license. Firearms dealers are only subject to state laws governing gun sales generally.
For laws requiring dealers to conduct a background check on prospective firearm purchasers, see the Background Checks in Arizona section.