HF4170 would prohibit the manufacture, import, transfer, ownership, and possession of semiautomatic military-style assault weapons and large-capacity magazines in Minnesota, effective August 1, 2026. The bill defines “semiautomatic military-style assault weapon” broadly by listing specific firearm models and by describing feature-based categories, such as semiautomatic rifles, pistols, and shotguns with detachable magazines or certain military-style features. It also defines “large-capacity magazine” as an ammunition-feeding device that holds more than ten rounds, with limited exceptions for permanently altered devices, .22 caliber tube magazines, and tubular magazines in lever-action firearms.
The bill creates new criminal provisions in chapter 624 making it unlawful to possess or transfer these weapons and magazines, with felony penalties for violations and gross misdemeanor penalties for certain knowing violations of storage, certification, or transfer restrictions. For people who already lawfully owned these items before the effective date, the bill sets up a certification process through the Bureau of Criminal Apprehension and local law enforcement, along with storage rules, periodic renewal, inspection authority, and reporting requirements for loss or theft. Owners who do not certify must surrender, permanently disable, or remove the items from Minnesota by February 1, 2027; inherited items are subject to similar disposal or removal requirements.
The bill also amends Minnesota’s existing firearm transfer and eligibility laws to conform to the new bans. It updates background-check and transfer-report requirements for pistols and semiautomatic military-style assault weapons, revises disqualification and penalty provisions, and adds semiautomatic military-style assault weapons to rules governing transferee permits, private transfers, recordkeeping, and unlawful transfers to prohibited persons. It further makes it a felony for a person under 21 to carry a semiautomatic military-style assault weapon in a public place.
Because the bill is a broad firearms restriction measure, its impact would be significant for gun owners, dealers, law enforcement agencies, and the Bureau of Criminal Apprehension. It would create new categories of prohibited firearms and magazines, impose a registration-like certification system for existing owners, and require agencies to adopt rules and administer compliance. It would also alter the legal treatment of private firearm transfers, inheritance, and possession by certain age groups, while preserving limited exceptions for law enforcement, military personnel, and certain manufacturer/dealer transactions.
There is no recorded committee testimony or vote history in the provided materials, so the overall sentiment cannot be measured from debate or roll-call data. Based on the bill text alone, the measure appears strongly supportive of gun-control objectives and likely to be controversial because it imposes sweeping restrictions, criminal penalties, and mandatory surrender or removal requirements for commonly owned firearms and magazines. The main points of contention would likely center on the breadth of the definitions, the treatment of existing owners, the certification and inspection requirements, and the felony penalties for noncompliance.
HF4170 would substantially amend Minnesota Statutes chapter 624 by creating new prohibitions on semiautomatic military-style assault weapons and large-capacity magazines, while also revising existing firearm transfer, permit, and possession laws to align with those prohibitions. It would add new statutory definitions, new offenses, and new duties for the Bureau of Criminal Apprehension and local law enforcement, and it would impose felony and gross misdemeanor penalties for possession, transfer, storage, certification, and inheritance-related violations. The bill would directly affect firearm owners, dealers, law enforcement agencies, and persons otherwise eligible to possess firearms under current law.
No committee transcripts or votes were provided, so there is no recorded legislative sentiment to summarize from discussion or roll call. From the bill’s content, the measure reflects a strong gun-restriction approach and would likely draw support from proponents of assault-weapon and magazine bans, while generating opposition from gun-rights advocates, firearm owners, dealers, and others concerned about the scope of the ban and the burdens placed on existing lawful owners.
The most likely points of contention are the bill’s broad definition of “semiautomatic military-style assault weapon,” its ban on magazines holding more than ten rounds, and the requirement that existing owners certify ownership or otherwise surrender, disable, or remove the items from the state. Opponents would likely object to the inspection and renewal requirements, the felony penalties for noncompliance, and the limits on transfer and inheritance. Supporters would likely emphasize public-safety goals, the restriction of high-capacity firearms and magazines, and the bill’s exceptions for law enforcement and military use.