So it says..... There is no minimum age to possess firearms under Arizona law, although federal law prohibits the possession of a handgun or ammunition for a handgun by anyone under age 18. 18 U.S.C. § 922(x)(2), (5). Federal law also prohibits the sale by a licensed dealer of a handgun or handgun ammunition to anyone under age 21, per 18 U.S.C. § 922(b)(1), (c)(1). This provision does not prohibit private sellers (sellers not federally licensed) from selling handguns and handgun ammunition to persons under age 21, however. Arizona had prohibited minors (defined as any person under age 18; see Ariz. Rev. Stat. § 1-215 (22)) from possessing or carrying firearms, subject to specific exceptions, under former Ariz. Rev. Stat. § 13-3111. While section 13-3111 is still technically codified within the Arizona Revised Statutes, the entire statute was expressly declared unconstitutional in In Re Cesar R., 4 P.3d 980 (1999). Im 20 and in the market for a beginner hand gun. My dad was a cop so I have been shooting for years and have been brought up around gun saftey. He has a desert eagle and a few revolvers that i dont know much about. Were can i find a non liscensed dealer?