Are Binary Triggers Legal in Wyoming?

ATF's Wyoming compendium identifies the state's weapons provisions without a binary-trigger, trigger-activator, or multiburst-trigger entry. The relevant state-law check is whether installation changes the host into a separately defined weapon, evaluated alongside the binary system's pull-fired and release-fired shots.

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 2026-07-31. 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.