This bill matters because it updates an important safety law to address modern firearm technology and manufacturing methods. The original 1988 law was created when guns were primarily made of metal, but advancements like 3D printing allow for firearms to be made from materials that traditional metal detectors or X-ray machines might struggle to identify.

If this bill becomes law, it would aim to close potential loopholes that current technology has created, making it harder for individuals to bypass security checkpoints with firearms made from non-traditional materials. If it doesn't become law, the existing definitions for 'undetectable firearms' may remain outdated, potentially posing a security risk as technology continues to evolve and making it easier to produce or possess firearms that evade detection.