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Wisconsin Legislature: SB332: Bill Text
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SB332: Bill Text
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2025 - 2026 LEGISLATURE
LRB-3489/1
CMH:klm
2025 SENATE BILL 332
June 19, 2025 - Introduced by Senators
Hesselbein
,
L. Johnson
,
Larson
,
Roys
,
Dassler-Alfheim
,
Drake
,
Habush Sinykin
,
Keyeski
,
Ratcliff
,
Smith
,
Spreitzer
and
Carpenter
, cosponsored 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
. Referred to Committee on Licensing, Regulatory Reform, State and Federal Affairs.
SB332,1,4
1
An Act
to amend
939.6195 (1) (a) 1. and 941.291 (1) (b);
to create
941.293 of
2
the statutes;
relating to:
prohibition against undetectable firearms,
3
possessing a frame or receiver of a firearm without a serial number, and
4
providing a penalty.
Analysis by the 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.
The people of the state of Wisconsin, represented in senate and assembly, do enact as follows:
SB332,1
1
Section
1
.
939.6195 (1) (a) 1. of the statutes is amended to read:
SB332,2,2
2
939.6195
(1)
(a) 1. A violation of s. 941.29
or
,
941.2905
, or 941.293
.
SB332,2
3
Section
2
.
941.291 (1) (b) of the statutes is amended to read:
SB332,2,15
4
941.291
(1)
(b) “Violent felony” means any felony, or the solicitation,
5
conspiracy, or attempt to commit any felony, under s. 943.23 (1m) or (1r), 1999
6
stats., or s. 943.23 (1g), 2021 stats., or s. 940.01, 940.02, 940.03, 940.05, 940.06,
7
940.08, 940.09, 940.10, 940.19, 940.195, 940.198, 940.20, 940.201, 940.203,
8
940.204, 940.21, 940.225, 940.23, 940.285 (2), 940.29, 940.295 (3), 940.30, 940.305,
9
940.31, 940.43 (1) to (3), 940.45 (1) to (3), 941.20, 941.26, 941.28, 941.29,
941.293,
10
941.30, 941.327, 943.01 (2) (c), 943.011, 943.013, 943.02, 943.04, 943.06, 943.10 (2),
11
943.231 (1), 943.32, 943.81, 943.82, 943.83, 943.85, 943.86, 943.87, 943.88, 943.89,
12
943.90, 946.43, 947.015, 948.02 (1) or (2), 948.025, 948.03, 948.04, 948.05, 948.06,
13
948.07, 948.08, 948.085, or 948.30; or, if the victim is a financial institution, as
14
defined in s. 943.80 (2), a felony, or the solicitation, conspiracy, or attempt to commit
15
a felony under s. 943.84 (1) or (2).
SB332,3
16
Section
3
.
941.293 of the statutes is created to read:
SB332,2,18
17
941.293
Undetectable firearms; serial numbers on firearm
18
components.
(1)
In this section:
SB332,2,20
19
(a) “Major component” means the barrel, the slide or cylinder, or the frame or
20
receiver of a firearm.
SB332,3,1
1
(b) “Undetectable firearm” means any of the following:
SB332,3,4
2
1. A firearm that, after the removal of grips, stocks, and magazines, is not
3
detectable by a metal detector calibrated to detect a security exemplar, as defined in
4
18 USC 922
(p) (2) (C).
SB332,3,8
5
2. A firearm if any major component of it does not generate an image that
6
accurately depicts the shape of the component when subject to inspection by
7
security scanners, x-ray machines, or other security devices commonly used at
8
airports.
SB332,3,10
9
(2)
(a) 1. Whoever sells, offers to sell, transfers, transports, manufactures,
10
possesses, or goes armed with an undetectable firearm is guilty of a Class G felony.
SB332,3,13
11
2. Whoever sells, offers to sell, transfers, posts, provides to another, or
12
possesses plans for manufacturing an undetectable firearm is guilty of a Class H
13
felony.
SB332,3,17
14
(b) Paragraph (a) does not apply to a person who is licensed by a state or the
15
federal government to manufacture undetectable firearms while the person is on
16
official duty. Paragraph (a) 1. does not apply to a law enforcement officer while on
17
official duty or to armed forces or national guard personnel while on official duty.
SB332,3,20
18
(3)
(a) Whoever possesses a frame or a receiver of a firearm that is not
19
attached to a firearm and that is not marked or engraved with a serial number is
20
guilty of a Class I felony.
SB332,4,2
21
(b) Paragraph (a) does not apply to a firearm frame or receiver manufactured
22
before 1968, a person who is licensed by a state or the federal government to
23
manufacture undetectable firearms while the person is on official duty, a law
1
enforcement officer while on official duty, or armed forces or national guard
2
personnel while on official duty.
SB332,4,3
3
(end)
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