Wisconsin · 2025-2026 Regular Session · Bill

SB 332: Relating to: prohibition against undetectable firearms, possessing a frame or receiver of a firearm without a serial number, and providing a penalty.

Did not advance Last action March 23, 2026: Failed to pass pursuant to Senate Joint Resolution 1

Plain-language summary

SB 332 is a bill introduced in the Wisconsin Senate on June 19, 2025. According to its official title, it concerns: Relating to: prohibition against undetectable firearms, possessing a frame or receiver of a firearm without a serial number, and providing a penalty. Primary sponsor: Dianne Hesselbein (Democratic), LaTonya Johnson (Democratic), Chris Larson (Democratic), Kelda Roys (Democratic), Kristin Dassler-Alfheim (Democratic), Dora Drake (Democratic), Jodi Habush Sinykin (Democratic), Sarah Keyeski (Democratic), Melissa Ratcliff (Democratic), Jeff Smith (Democratic), Mark Spreitzer (Democratic), Tim Carpenter (Democratic). It lists 34 additional sponsors. Most recent recorded action (March 23, 2026): Failed to pass pursuant to Senate Joint Resolution 1.

Sponsors

Primary sponsors: Dianne Hesselbein (Democratic); LaTonya Johnson (Democratic); Chris Larson (Democratic); Kelda Roys (Democratic); and 8 more. 34 co-sponsors.