Bills › WI
WI SB 332
Relating to: prohibition against undetectable firearms, possessing a frame or receiver of a firearm without a serial number, and providing a penalty.
In brief
WI SB 332 is a state bill in WI: “Relating to: prohibition against undetectable firearms, possessing a frame or receiver of a firearm without a serial number, and providing a penalty.” It was introduced on Jun 19, 2025 in the Senate, during the 2025 session. Its status at our last check, on Oct 28, 2026: failed or withdrawn. The latest action we have (Mar 23, 2026) reads: “Failed to pass pursuant to Senate Joint Resolution 1”. Its sponsors are Hesselbein (Democratic), L. Johnson (Democratic), Larson (Democratic), Roys (Democratic), Dassler-Alfheim (Democratic), Drake (Democratic), Habush Sinykin (Democratic), Keyeski (Democratic), Ratcliff (Democratic), Smith (Democratic), Spreitzer (Democratic), Carpenter (Democratic), with 34 cosponsors. CSWH lists it under the cause Gun violence. The facts here come from State legislature (docs.legis.wisconsin.gov) and Open States (openstates.org); the bill's own text there is the authority.
Where it stands
- Status
- Failed or withdrawn
- Latest action
- Mar 23, 2026: Failed to pass pursuant to Senate Joint Resolution 1
- Sponsors
- Hesselbein (Democratic)
- L. Johnson (Democratic)
- Larson (Democratic)
- Roys (Democratic)
- Dassler-Alfheim (Democratic)
- Drake (Democratic)
- Habush Sinykin (Democratic)
- Keyeski (Democratic)
- Ratcliff (Democratic)
- Smith (Democratic)
- Spreitzer (Democratic)
- Carpenter (Democratic)
- Started in
- Senate
- Introduced
- Jun 19, 2025
- Session
- 2025
- Subjects
- 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
Our summary: WI SB 332 on prohibition against undetectable firearms and possessing a firearm frame or receiver without a serial number failed to pass pursuant to Senate Joint Resolution 1 on 2026-03-23. (written by our daily update from the source; the bill's text is the authority)
Sources
- State legislature: docs.legis.wisconsin.gov/2025/proposals/reg/sen/bill/sb332
- Open States: openstates.org/wi/bills/2025/SB332/
Checked by our daily update on Oct 28, 2026.
Sign in or join to follow this bill and see it in your account.
Write to your legislators
Members can write to their own legislators about this bill in a few steps: we find who represents you and prepare the letter; you edit it and send it as yourself. Sign in or join.
Anyone can find their legislators and how to reach them.