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HOUSE 4221119th CongressReferred to the House Committee on the Judiciary.

Undetectable Firearms Modernization Act

Last Action
6/27/2025

Actions

  • 2025-06-27Referred to the House Committee on the Judiciary.
  • 2025-06-27Introduced in House
  • 2025-06-27Introduced in House

CRS Summary

As of 2025-06-27 (00)

Undetectable Firearms Modernization Act

This bill strengthens the detectability standard for firearms under federal firearms laws.  

Current law requires firearms to be detectable by walk-through metal detectors after the removal of grips, stocks, and magazines. Specifically, firearms must be as detectable as a security exemplar (i.e., a piece of stainless steel that is 3.7 ounces and in a shape resembling a handgun). There are exceptions, including for firearms manufactured for or sold to U.S. military or intelligence agencies.

This bill requires firearms to contain detectable material after the removal of all parts other than major components. It defines detectable material as material that produces a magnetic field equivalent to that produced by 3.7 ounces of stainless steel. The bill also revises and broadens the exceptions to include firearms (1) received by, in the possession of, or under the control of the United States; or (2) produced pursuant to a contract with the United States.

Read on Congress.gov

Sourced from Congress.gov (public domain).

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.