Bill > HR4221

This bill modernizes the Undetectable Firearms Act of 1988 by updating the definition and restrictions on firearms that can pass undetected through security screening. Specifically, the bill changes how "undetectable" firearms are defined by modifying the requirements for detection through airport security devices. Instead of comparing a firearm to a specific "Security Exemplar" model, the new language focuses on whether a firearm contains "detectable material" - defined as material that produces a magnetic field equivalent to 3.7 ounces of a specific type of stainless steel. The bill also clarifies what constitutes a firearm's "major components" by specifying that for a firearm, this includes the slide, cylinder, frame, receiver, and for rifles and shotguns, the barrel. Additionally, the bill expands the exemptions to the undetectable firearms prohibition, allowing firearms received, possessed, or controlled by the United States government, as well as firearms manufactured or imported by licensed manufacturers under existing government contracts. These changes aim to provide more precise legal language around the detection and regulation of potentially dangerous firearms that could evade security screening.

Justice

https://www.congress.gov/bill/119th-congress/house-bill/4221/all-info