Introduced April 9, 2025 by Martin Heinrich · Last progress April 9, 2025
The bill aims to reduce access to high-rate-of-fire accessories and improve federal oversight by folding certain modified semiautomatic firearms into the NFA, but does so by imposing registration requirements, taxes, market restrictions, and government exemptions that place legal and economic burdens on private owners and industry.
Owners of existing modified semiautomatic firearms who register them within the new framework can legally retain those firearms under the National Firearms Act instead of facing outright criminalization.
The bill's bans on devices that materially increase rate of fire reduce the interstate availability of high-rate-of-fire accessories, which may lower the risk of some mass-shooting scenarios for the general public.
Bringing covered modified semiautomatic firearms under the NFA creates federal registration, tax, and reporting lanes that improve tracing, oversight, and law‑enforcement ability to monitor these weapons.
Owners of modified semiautomatic firearms must register them within 120 days or face criminal penalties, creating immediate legal risk and compliance pressure for owners.
Classifying these firearms under the NFA imposes taxes, transfer restrictions, and administrative burdens on lawful owners and buyers, raising costs and complicating lawful possession and transfers.
The interstate-commerce ban on manufacture, import, sale, or transfer (outside exempt government entities) could reduce market options and revenue for lawful manufacturers, retailers, and consumers.
Based on analysis of 2 sections of legislative text.
Bans devices or modified semiautomatic firearms that materially increase rate of fire, requires owners to register pre-existing covered items under the NFA within 120 days, and adds them to NFA definitions.
Bans devices and modified semiautomatic firearms that materially increase rate of fire or mimic machinegun action from being imported, sold, manufactured, transferred, received, or possessed in interstate or foreign commerce, with limited exceptions. Owners of already-modified semiautomatic firearms must register them under the National Firearms Act within 120 days of the law taking effect; the law also adds those modified firearms to the NFA definition of a regulated "firearm." Exemptions preserve lawful possession or transfers of items modified and registered before enactment and exclude the United States and state and Tribal governments.