United States 119th Congress Status: In Committee 1 D cosponsors

HR 4221 — Undetectable Firearms Modernization Act

Last action — Referred to the House Committee on the Judiciary.

  1. ✓
    Introduced
  2. 2
    In Committee
  3. 3
    Passed House
  4. 4
    Passed Senate
  5. 5
    To Executive
  6. 6
    Enacted

This bill is in committee in the House. Introduced June 27, 2025. It must pass committee before a floor vote.

Next likely step: a committee vote, then a floor vote in the House.

Odds of enactment

Low chance

Based on the sponsor, cosponsors, and committee posture, this bill has a low chance of becoming law.

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A statistical estimate from our own model of past outcomes — an insight, not a guarantee. Policymaking is volatile.

Prognosis

Stalled 16% · moderate confidence

  • In Committee

    Current position in the legislative process.

  • 1 sponsor

    1 primary, 0 co-sponsors signed on.

  • Single-party support

    Sponsorship is currently within one party (1 D).

Based on stage, sponsorship breadth, committee status, recorded votes, and cross-state momentum — a description of the observable signals, not a prediction.

In plain language

HR 4221 is a newly introduced bill in the House.

This bill, identified as HR 4221, was introduced in the House of Representatives on June 27, 2025. It has been referred to the House Committee on the Judiciary for further consideration.

Bill Text

Action History

  1. Introduced in House

  2. Introduced in House

  3. Referred to the House Committee on the Judiciary.

Sponsors

Sponsorship breakdown

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1 sponsors · 0 co-sponsors · 546 not signed on

Sponsors (1)

Co-sponsors (0)

None.

Not signed on (546)

546 members have not signed on to this bill.

Show all 546 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Subjects

public-safety technology
Cross-referencing the record. Reading this bill against every other bill in the corpus by meaning, not keywords. Only the first open is slow. It’s instant for you after this. Matching · Ranking · Engrossing

Frequently asked questions

Who sponsors HR 4221?
HR 4221 is sponsored by Dean, Madeleine (Democratic).
What is the current status of HR 4221?
This bill is in committee in the House. Introduced June 27, 2025. It must pass committee before a floor vote.
Where can I track HR 4221?
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Last checked for changes 3 months ago · updated continuously

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