HB 3105 Missouri House · 2026 Regular Session

Modifies provisions regarding the rights of firearms owners

HB 3105, titled the "Second Amendment Preservation Act," protects Missouri residents' right to possess firearms by declaring federal gun regulations within the state invalid if they exceed constitutional limits. It grants the state attorney general or county prosecutors authority to sue federal officials for infringing on these rights and requires disciplinary action for law enforcement officers who knowingly violate them. The bill also affirms Missouri's exclusive authority to regulate firearms, including maintaining the existing federal excise tax on firearms, which it states does not restrict lawful ownership.

Bill status in committee 1 of 4 stages cleared

Introduction

Jan 2026

Committee Review

Floor Vote

Governor

Introduced Jan 27, 2026 Last action May 14, 2026

Maddy AI version diff · 1 comparison

What changed between versions

Introduced → House Committee Substitute · 4 edits

MODERATE

The bill was updated from an introduced version to a House Committee Substitute, which significantly tightened the definition of a 'law-abiding citizen' and modified enforcement procedures. The most critical change is that the definition of a law-abiding citizen was narrowed to exclude anyone not legally present in the US or Missouri, removing previous age and criminal investigation criteria. Additionally, the venue for lawsuits was changed from any county to specifically Cole County, and the agency responsible for reviewing officer discipline was clarified to include the Department of Public Safety.

Scope change

The bill's scope was narrowed regarding who qualifies as a 'law-abiding citizen' and where legal actions can be filed.

ELIGIBILITY

The definition of a 'law-abiding citizen' was changed to exclude anyone not legally present in the United States or Missouri, removing previous requirements about age and active criminal investigations.

ENFORCEMENT

The venue for lawsuits against law enforcement agencies was changed from the county where the incident occurred to specifically Cole County.

The process for disciplining officers was updated to require a referral to the Department of Public Safety for review before the attorney general can take action.

TECHNICAL

The bill number in the header was updated from 6855H.01I to 6855H.04C to reflect the committee substitute status.

Floor votes

How they voted

No floor votes recorded yet.

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Mar 4, 2026

Committee

Referred: Rules - Legislative(H)

lower

Feb 26, 2026

Lower · Passed

HCS Reported Do Pass (H) - AYES: 11 NOES: 6 PRESENT: 0

lower

Feb 26, 2026

Lower · Passed

HCS Voted Do Pass (H)

lower

Feb 12, 2026

Committee

Referred: Crime and Public Safety(H)

lower

Jan 27, 2026

Introduced

Introduced and Read First Time (H)

lower

1 primary · 32 co-sponsors