HR 4221 · in committee · significant
Undetectable Firearms Modernization Act
- criminal justice
What this bill does
- The bill strengthens federal requirements for firearm detectability by metal detectors.
- It affects firearm manufacturers and applies to civilian and government-contracted weapons.
- The bill updates detection standards to apply after removing all parts except major components.
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Community Threads
Started by Cosponsor
- 01
How would requiring firearms to remain detectable after removing all but major components affect the manufacturing costs and design processes of firearm makers?
- 02
Which groups—manufacturers, law enforcement, security agencies, or others—would bear the primary compliance burden under these updated detection standards?
- 03
What evidence or incidents prompted updating the detectability standards to focus specifically on firearms with major components remaining?
Cosponsor writes these to seed civic discussion — they aren't user posts. Sign in to reply.

Sponsor · D-PA-4
Madeleine Dean
Citizen cosponsors
0
In Congress
0/ 435
House Reps cosponsoring
Introduced 2025-06-27
Legislative timeline
2025-06-27 · house · IntroReferral
Referred to the House Committee on the Judiciary.
2025-06-27 · IntroReferral
Introduced in House
2025-06-27 · IntroReferral
Introduced in House
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