Congress moves to strip states of power to limit firearm magazine size
H.R. 4546 — FIRE Act · Filed by Tony Wied (R-WI) · 10 cosponsors · Introduced Jul 17, 2025 · Referred to committee
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What it does
This bill amends federal firearms law to prohibit the federal government from regulating firearm magazine capacity and voids all state and local laws that limit magazine capacity. It defines 'firearm magazine' and 'capacity' for statutory purposes and takes effect 30 days after enactment.
Why we flagged it
The bill's operative mechanism is the removal of all government capacity restrictions on firearm magazines — a straightforward deregulatory measure. It does not create new rights or protections; it eliminates existing regulatory authority and voids existing laws.
What the text implies
- Preempts state and local democratic processes: voters in any state or locality can no longer use ballot initiatives, referenda, or local ordinances to set magazine-capacity limits, even if a majority supports such restrictions.
- Eliminates a tool cited by law enforcement and public-health researchers as relevant to casualty reduction in mass-shooting incidents; removes the ability to calibrate this tool by jurisdiction based on local preferences.
The full analysis lists 3 implications of this text.
Who stands to gain
firearm and ammunition manufacturers; magazine manufacturers and distributors