Criminal Law - Firearm Crimes - Machine Gun Convertible Pistols
SB 334 prohibits the manufacture, sale, purchase, transfer, or possession of "machine gun convertible pistols" after a specified date. These are defined as semi-automatic pistols with a specific trigger mechanism that can be easily converted to fire automatically using common tools or a "pistol converter" (including 3D-printed versions). The law exempts law enforcement, licensed dealers acting within their business, and certain inheritances or transfers. It amends Maryland's criminal code to specifically ban these devices while clarifying related terms like "rapid fire activators." The bill targets the conversion capability, not standard semi-automatic pistols.
Bill status
signed
all 5 stages cleared
Introduction
Jan 2026
Committee Review
Apr 2026
Senate Passage
Apr 2026
House of Delegates Passage
Apr 2026
Signed into Law
May 2026
Introduced Jan 23, 2026
Signed May 26, 2026
Maddy AI version diff · 1 comparison
What changed between versions
First - Criminal Law - Firearm Crimes - Machine Gun Convertible Pistols
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Third - Criminal Law - Firearm Crimes - Machine Gun Convertible Pistols
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3 edits
MINOR
The bill was amended to include new definitions for 'Copycat weapon' and 'Cruciform trigger bar' while retaining existing definitions for other firearm terms. The scope of the bill remains focused on regulating machine gun convertible pistols and related devices, but the language now explicitly clarifies what constitutes a copycat weapon and the specific mechanical features of a cruciform trigger bar.
Scope change
The bill's scope remains focused on firearm regulation, but the definitions section was expanded to include specific criteria for identifying copycat weapons and clarifying the mechanical definition of a cruciform trigger bar.
DEFINITION
Added a new definition for 'Copycat weapon' to include specific types of semiautomatic rifles and shotguns with features like folding stocks or high-capacity magazines.
Added a new definition for 'Cruciform trigger bar' to specify its mechanical function as a cross-shaped component linking the trigger to the firing pin.
Modified the definition of 'Machine gun convertible pistol' to explicitly include pistols with polymer notches or molded pieces where converters can be attached.
Floor votes · Senate Mar 3, 2026 · House of Delegates Mar 24, 2026
How they voted
29–17
Passed · 3 other
Total votes 49
Mar 3, 2026
D
Democratic36
80% Yea
R
Republican13
100% Nay
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
30
Key actions
18
Committee
7
Amendments
2
May 26, 2026
Signed into law
Approved by the Governor - Chapter 771
executive
Apr 10, 2026
Upper · Passed
Returned Passed
upper
Apr 9, 2026
Lower · Passed
Third Reading Passed
lower
Apr 9, 2026
Lower · Passed
Motion Recede (Delegate Bartlett) Adopted
lower
Apr 9, 2026
Introduced
Senate Refuses Concur House Amendments
upper
Apr 8, 2026
Upper · Passed
Motion Special Order until 4/9 (Senator Smith) Adopted
upper
Apr 8, 2026
Upper · Passed
Motion Reconsider the Vote to Not Concur (Senator Smith) Adopted
upper
Apr 8, 2026
Introduced
Senate Refuses Concur House Amendments
upper
Apr 8, 2026
Lower · Passed
Third Reading Passed
lower
Apr 6, 2026
Lower · Passed
Motion Special Order until Next Session (Delegate Pippy) Adopted
lower
Apr 6, 2026
Lower · Passed
Favorable with Amendments {
lower
Apr 6, 2026
Lower · Passed
Favorable with Amendments Report by Judiciary
lower
Mar 24, 2026
House Of Delegates · Passed
House of Delegates Vote: pass (91-40-11)
house of delegates
Mar 20, 2026
Committee
Referred Judiciary
lower
Mar 19, 2026
Upper · Passed
Third Reading Passed
upper
Mar 16, 2026
Upper · Passed
Motion Special Order until Later Today (Senator Ready) Adopted
upper
Mar 16, 2026
Upper · Passed
Favorable with Amendments {
upper
Mar 13, 2026
Upper · Passed
Motion Laid Over (Senator Ready) Adopted
upper
Mar 13, 2026
Upper · Passed
Favorable with Amendments {
upper
Mar 12, 2026
Upper · Passed
Favorable with Amendments Report by Judicial Proceedings
upper
Mar 3, 2026
Senate · Passed
Senate Vote: pass (29-17-3)
senate
Jan 23, 2026
Committee
First Reading Judicial Proceedings
upper
3 primary · 0 co-sponsors
Sponsors
Role
Legislator
Party
State
District
P
Jeff Waldstreicher
DDemocratic
P
Sara Love
DDemocratic
P
Will Smith
DDemocratic
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