
Franklin Armory BFSIII AR-Essential Binary Trigger
- 3-position selector (safe / semi / binary)
- Fires one round on pull, one on release in binary mode
State Legality MatrixBinary TriggersOhio
Statute-cited, last verified 2026-07-31
Legal
Yes. No state statute restricts binary triggers.
The statute in practice
Ohio Revised Code section 2923.11 defines an automatic firearm and places it within the state's dangerous-ordnance framework, with possession and licensing addressed elsewhere in Chapter 2923. The current ATF compendium does not identify a separate binary-trigger or rate-enhancement category.
Federal law
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.
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.
Common questions
Yes. No state statute restricts binary triggers.
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.
What to buy
In a green state, these are the binaries that matter. Franklin Armory's BFSIII line covers AR, Scorpion, Stribog, and B&T hosts, and the Fostech Echo AR-II is the drop-in AR alternative.




Affiliate links (?)