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Bills · 2025-2026 Regular Session

AB 321

Died at session end Official bill text Atom feed

Relating to: prohibition against undetectable firearms, possessing a frame or receiver of a firearm without a serial number, and providing a penalty.

Crime and criminals Firearms and dangerous weapons Fish and fishing Industrial development Legislature — Criminal penalties joint review committee on Legislature — Employment relations joint committee on

  1. Introduced, stopped here
  2. Passes Assembly, not reached
  3. Passes Senate, not reached
  4. Governor signs, not reached
  5. Law, not reached

Unfamiliar terms? Glossary

What this bill does

Plain-language analysis by the nonpartisan Legislative Reference Bureau

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.

Sponsors

Introduced by: Andraca (D) , Arney (D) , Bare (D) , Brown (D) , Clancy (D) , Cruz (D) , DeSmidt (D) , Emerson (D) , Fitzgerald (D) , Goodwin (D) , Haywood (D) , Hong (D) , Hysell (D) , Joers (D) , Johnson (D) , Kirsch (D) , Mayadev (D) , Miresse (D) , Moore Omokunde (D) , Neubauer (D) , Palmeri (D) , Prado (D) , Rivera-Wagner (D) , Roe (D) , Sheehan (D) , Sinicki (D) , Snodgrass (D) , Stroud (D) , Stubbs (D) , Subeck (D) , Taylor (D) , Tenorio (D) , Udell (D) , Vining (D)

15 cosponsors

Billings (D) , Carpenter (D) , Dassler-Alfheim (D) , Drake (D) , Habush Sinykin (D) , Hesselbein (D) , J. Jacobson (D) , Keyeski (D) , L. Johnson (D) , Larson (D) , McCarville (D) , Ratcliff (D) , Roys (D) , Smith (D) , Spreitzer (D)

Registered lobbying interests · 4

Organizations that registered lobbying activity on this bill with the Wisconsin Ethics Commission. Registration means interest, not a position for or against. Official record

Full history

  1. Jul 8, 2025 · Assembly

    Introduced by Representatives Joers, Fitzgerald, Subeck, Hong, Andraca, Stubbs, Vining, Clancy, Arney, Bare, Brown, Cruz, DeSmidt, Emerson, Goodwin, Hysell, Haywood, Johnson, Kirsch, Mayadev, Miresse, Moore Omokunde, Neubauer, Palmeri, Prado, Rivera-Wagner, Roe, Sheehan, Sinicki, Snodgrass, Stroud, Taylor, Tenorio and Udell; cosponsored by Senators Hesselbein, L. Johnson, Larson, Roys, Dassler-Alfheim, Drake, Habush Sinykin, Keyeski, Ratcliff, Smith, Spreitzer and Carpenter

  2. Jul 8, 2025 · Assembly

    Read first time and referred to Committee on Criminal Justice and Public Safety

  3. Sep 10, 2025 · Assembly

    Representative Billings added as a coauthor

  4. Sep 23, 2025 · Assembly

    Representative McCarville added as a coauthor

  5. Jan 8, 2026 · Assembly

    Representative J. Jacobson added as a coauthor

  6. Mar 23, 2026 · Assembly

    Failed to pass pursuant to Senate Joint Resolution 1