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GOSAFE Act bans gas-operated semi-automatic firearms

A federal framework to define, list, and restrict gas-operated semi-autos and large-capacity magazines, with funding for buy-backs and new design approvals.

The Brief

The Gas-Operated Semi-Automatic Firearms Exclusion Act (GOSAFE Act) adds new definitions for gas-operated semi-automatic firearms and large-capacity magazines to federal law and makes possession, import, sale, or transfer of those firearms and devices unlawful. It also requires the Attorney General to publish a list of prohibited gas-operated firearms and to establish a process for approving or denying new firearm designs designed for civilian markets.

The bill funds buy-back programs using Byrne Grants and creates a dedicated Firearm Safety Trust Fund for implementation and oversight, while imposing penalties for violations and enabling private actions against improper removals from the prohibited list.

At a Glance

What It Does

It defines gas-operated semi-automatic firearms and large-capacity magazines, prohibits their import, sale, manufacture, transfer, or possession, and directs ATF to publish a list of prohibited firearms. It also creates an approval process for new designs and authorizes funding mechanisms for buy-back programs.

Who It Affects

Licensed importers, manufacturers, and dealers; gun owners with gas-operated firearms or large-capacity magazines; ATF and law-enforcement agencies; localities implementing buy-back programs.

Why It Matters

It institutionalizes a broad prohibition, creates a centralized list of prohibited firearms, and funds compliance and buy-backs, signaling a significant shift in federal firearms regulation and enforcement.

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What This Bill Actually Does

The GOSAFE Act tightens federal control over certain firearms by defining what counts as a gas-operated semi-automatic firearm and what constitutes a large-capacity ammunition feeding device. It makes it illegal to import, sell, manufacture, transfer, or possess these guns or devices, with limited carve-outs.

The bill also mandates the creation of a list of prohibited firearms, to be published by the Attorney General within 180 days, and lays out an approval process for new civilian-design firearms intended to avoid prohibition. To help implement these changes, the act authorizes funding for buy-back programs via Byrne Grants and creates the Firearm Safety Trust Fund, supported by taxes and fees collected by the ATF.

Penalties for violations are spelled out, and the act contemplates a private right of action to challenge improper removals from the prohibited list. The overall aim is to reduce access to high-firepower firearms while providing structured mechanisms for enforcement, funding, and compliance.

The Five Things You Need to Know

1

The bill defines ‘gas-operated semi-automatic firearm’ and related terms, including ‘cycle the action’ and different gas-drive systems.

2

It bans import, sale, manufacture, transfer, or possession of gas-operated semi-automatic firearms and large-capacity magazines with specific exemptions.

3

A new ATF process will publish a list of prohibited firearms within 180 days and determine approvals for new civilian designs.

4

It authorizes buy-back funding for surrendered firearms and large-capacity magazines through Byrne Grants and creates a Firearm Safety Trust Fund.

5

Penalties include fines up to $5,000 per offense and enhanced penalties for certain violations, plus a private right of action to challenge removals from the prohibited list.

Section-by-Section Breakdown

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Section 1

Short title

This section designates the act as the Gas-Operated Semi-Automatic Firearms Exclusion Act (the GOSAFE Act). It serves as the official naming convention for purposes of citation and reference in federal statutes.

Section 2

Definitions and Prohibitions

Section 2 adds critical definitions to 18 U.S.C. as follows: (39) defines ‘semi-automatic firearm’ by its firing cycle and trigger requirements; (40) defines ‘cycle the action’; (41) defines ‘gas-operated’ with multiple system types (long/short stroke, gas-venting, hybrid or recoil-based); and (42) defines ‘large capacity ammunition feeding device’ with a 10-round threshold and exclusions. It further clarifies prohibited configurations and the interplay between parts intended to modify firearms to operate as gas-operated semi-automatic firearms.

Section 3

Byrne Grants for Buy-Back Programs

This section authorizes the use of Byrne Grants to compensate surrender of gas-operated semi-automatic firearms and LCAMFDs under buy-back programs. It expands the purposes of Byrne funding to support localities and agencies seeking to remove these firearms from circulation, aligning financial incentives with public safety goals.

2 more sections
Section 4

Penalties

Section 4 adds penalties for violations of the new prohibitions in section 922(v) and associated provisions. Offenders can face fines up to $5,000 per offense and up to 12 months’ imprisonment for each offense. If violations coincide with other federal offenses, penalties can include substantially higher prison terms and fines, reflecting the enhanced severity when new prohibited devices are involved.

Section 5

Prohibited Firearm Determinations

Section 5 creates a new 935. Prohibited firearm determinations within Chapter 44. It requires the Attorney General to publish and periodically update a list of gas-operated semi-automatic firearms prohibited under section 922(v). It sets forth an approval process for new firearm designs, including an application with specifications, samples, and marketing materials, and prescribes review timelines and fee structures. It also creates a Firearm Safety Trust Fund to support implementation and enforcement, provides for private actions to challenge removals from the list, and details the process for appeals and judicial review.

At scale

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Who Benefits and Who Bears the Cost

Every bill creates winners and losers. Here's who stands to gain and who bears the cost.

Who Benefits

  • ATF and federal law-enforcement personnel gain a clear, enforceable list and defined procedures for evaluating new designs, improving regulatory certainty.
  • State and local law enforcement benefit from a centralized list and buy-back mechanisms that help reduce prohibited-gun circulation.
  • Municipalities and jurisdictions implementing buy-back programs gain access to Byrne Grant funding and a structured path to reduce inventory of prohibited firearms.
  • Public health and safety advocates and communities seek reduced access to high-firepower firearms, contributing to potential declines in gun-violence risk.
  • Firearm-safety and compliance professionals gain clearer compliance expectations and a formal process for firearms design approvals.

Who Bears the Cost

  • Licensed manufacturers and importers bear new compliance costs including marking, application fees, and potential redesigns to meet prohibitions.
  • Licensed dealers must implement purchaser acknowledgment checks and adapt to new transfer rules under the prohibited-firearms regime.
  • Gun owners who possess gas-operated firearms or LCAMFDs face restrictions, potential surrender costs, and the administrative burden of compliance.
  • Localities funding buy-back programs incur costs, albeit offset by Byrne Grants and potential savings from reduced gun-related incidents.
  • Taxpayers fund the Firearm Safety Trust Fund and related administrative costs of implementing the Act.

Key Issues

The Core Tension

The core tension lies in balancing public safety goals—reducing access to high-firepower firearms and rapid-fire devices—with the complexity and cost of implementing a new federal regulatory regime. Definitional breadth risks ambiguous enforcement, while the private-right-of-action provision could invite challenges that complicate administration rather than streamline it.

The bill introduces a broad regulatory framework that hinges on technical definitions of firearm operation and componentry. A central challenge is the breadth of the “gas-operated” category, which, despite detailed system types, could raise definitional and enforcement questions when applied to a wide range of firearms and configurations.

The inclusion of a private right of action to challenge removals from the prohibited list adds a legal check against arbitrary administrative action, but also creates potential for litigation. The funding mechanism via the Firearm Safety Trust Fund, funded by taxes and fees, is intended to ensure resources for implementation, but the long-term fiscal impact and fee levels remain to be tested in practice.

Finally, the exemptions and transfer rules, particularly regarding immediate-family transfers, could create gaps or inconsistencies in enforcement if not harmonized with existing state laws and licensing regimes.

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