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State Legality Matrix Binary TriggersAlabama

Are Binary Triggers Legal in Alabama?

Statute-cited, last verified 2026-07-31

Status: Legal
Verified: 2026-07-31

Legal

Yes. No state statute restricts binary triggers.

The statute in practice

Alabama Law in Detail

Alabama Code section 13A-11-82.1 defines a machine-gun conversion device around automatic fire by a single trigger function and frames its device offense around pistol-conversion parts. That trigger-function test is the state-specific text to compare with a binary system's separate pull-fired and release-fired shots.

Timeline

Legislative and Court History

2025Alabama enacted section 13A-11-82.1 to create a machine-gun-conversion-device offense focused on pistol-conversion parts.

Sources

Federal law

Federal baseline

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.

Common questions

Frequently Asked Questions