Are Binary Triggers Legal in Arizona?

Arizona Revised Statutes section 13-3101 defines a prohibited weapon to include a firearm capable of shooting more than one shot automatically, without manual reloading, by a single function of the trigger. Section 13-3102(A)(3) makes manufacturing, possessing, transporting, selling, or transferring a prohibited weapon misconduct involving weapons.

Binary triggers are legal under federal law and are not machine guns under 26 U.S.C. § 5845(b); ATF treats the trigger pull and the trigger release as two separate functions of the trigger, so one round is fired per function. Cargill v. Garland (2024) concerned bump stocks, not binary triggers, and does not change this.

Federal baseline verified 2026-10-20. Scope: Binary triggers (Franklin Armory BFSIII and similar): fire one round on trigger pull and one on release. Forced reset triggers are a separate class.