Bill
Bill > AB321
WI AB321
WI AB321Prohibition against undetectable firearms, possessing a frame or receiver of a firearm without a serial number, and providing a penalty.
summary
Introduced
07/08/2025
07/08/2025
In Committee
07/08/2025
07/08/2025
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, the Joint Review Committee on Criminal Penalties may be requested to prepare a report.
AI Summary
This bill creates new state-level regulations regarding undetectable firearms and firearm components, specifically prohibiting the manufacture, sale, possession, transportation, and carrying of firearms that cannot be detected by metal detectors or airport security scanners. The bill defines an "undetectable firearm" as a weapon that either cannot be detected by a metal detector or cannot generate a clear image in security scanning equipment. Violating the prohibition on undetectable firearms is classified as a Class G felony, while selling or possessing plans for manufacturing such firearms is a Class H felony. Additionally, the bill makes it a Class I felony to possess a firearm frame or receiver that is not marked with a serial number. Certain exemptions exist for government-licensed manufacturers, law enforcement officers, and military personnel while on official duty. The legislation aims to enhance public safety by preventing the creation and distribution of firearms that could potentially evade security screening, building upon existing federal prohibitions by establishing similar restrictions at the state level.
Committee Categories
Justice
Sponsors (46)
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)*,
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),
Last Action
Representative J. Jacobson added as a coauthor (on 01/08/2026)
Official Document
bill text
bill summary
Loading...
bill summary
Loading...
bill summary
| Document Type | Source Location |
|---|---|
| State Bill Page | https://docs.legis.wisconsin.gov/2025/proposals/reg/asm/bill/ab321 |
| BillText | https://docs.legis.wisconsin.gov/document/proposaltext/2025/REG/AB321.pdf |
Loading...