H.R. 4221 · 119TH CONGRESS

Undetectable Firearms Modernization Act

IntroducedCrime and Law Enforcement

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Bill details come from GovInfo. Summaries are written by the Congressional Research Service. You can read the original publications below.

Checked September 8, 2026
Source updated March 18, 2026

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Bill text, related legislation, sponsors, and summaries from Congress.gov.