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Bill > SB332

WI SB332

Prohibition against undetectable firearms, possessing a frame or receiver of a firearm without a serial number, and providing a penalty.

summary

Introduced
06/19/2025
In Committee
06/19/2025
Crossed Over
Passed
Dead

Introduced Session

2025-2026 Regular Session

Bill Summary

This bill prohibits the manufacture, transportation, sale, possession, and carrying of firearms that cannot be detected by metal detectors or airport x-ray machines or scanners. Federal law currently has a comparable prohibition; under this bill, the person would violate state law as well. A person who violates the state prohibition is guilty of a Class G felony. This bill also prohibits the sale, posting, provision, or possession of plans for manufacturing an undetectable firearm. A person who violates this prohibition is guilty of a Class H felony. Finally, the bill prohibits the possession of a frame or a receiver of a firearm that is not marked with a serial number. A person who violates this prohibition is guilty of a Class I felony. Because this bill creates a new crime or revises a penalty for an existing crime, LRB-3489/1 CMH:klm 2025 - 2026 Legislature SENATE BILL 332 the Joint Review Committee on Criminal Penalties may be requested to prepare a report.

AI Summary

This bill establishes new state-level criminal prohibitions related to undetectable firearms and firearm components. Specifically, the bill makes it a Class G felony to manufacture, sell, transfer, transport, possess, or carry a firearm that cannot be detected by metal detectors or security scanners, which means a firearm that either fails metal detector screening or cannot be accurately imaged by airport security devices. It also creates a Class H felony for selling, providing, or possessing plans for manufacturing such undetectable firearms. Additionally, the bill makes it a Class I felony to possess a firearm frame or receiver that is not marked with a serial number, with exceptions for firearms manufactured before 1968 and for law enforcement, military, and licensed manufacturers while on official duty. The legislation expands existing state law to create more comprehensive restrictions on untraceable and undetectable firearms, aligning with federal prohibitions and addressing potential security risks associated with emerging firearm manufacturing technologies like 3D printing.

Committee Categories

Government Affairs

Sponsors (46)

Tim Carpenter (D)*,  Kristin Dassler-Alfheim (D)*,  Dora Drake (D)*,  Jodi Habush Sinykin (D)*,  Dianne Hesselbein (D)*,  LaTonya Johnson (D)*,  Sarah Keyeski (D)*,  Chris Larson (D)*,  Melissa Ratcliff (D)*,  Kelda Roys (D)*,  Jeff Smith (D)*,  Mark Spreitzer (D)*,  Deb Andraca (D),  Margaret Arney (D),  Mike Bare (D),  Brienne Brown (D),  Ryan Clancy (D),  Angelina Cruz (D),  Ben DeSmidt (D),  Jodene Emerson (D),  Joan Fitzgerald (D),  Russell Goodwin (D),  Kalan Haywood (D),  Francesca Hong (D),  Andrew Hysell (D),  Alex Joers (D),  Tara Johnson (D),  Karen Kirsch (D),  Renuka Mayadev (D),  Vincent Miresse (D),  Supreme Moore Omokunde (D),  Greta Neubauer (D),  Lori Palmeri (D),  Pricilla Prado (D),  Amaad Rivera-Wagner (D),  Ann Roe (D),  Joe Sheehan (D),  Christine Sinicki (D),  Lee Snodgrass (D),  Angela Stroud (D),  Shelia Stubbs (D),  Lisa Subeck (D),  Sequanna Taylor (D),  Angelito Tenorio (D),  Randy Udell (D),  Robyn Vining (D), 

Last Action

Read first time and referred to Committee on Licensing, Regulatory Reform, State and Federal Affairs (on 06/19/2025)

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