Us Congress 2025-2026 Regular Session

Us Congress Senate Bill SB1374

Introduced
4/9/25  

Caption

BUMP Act Banning Unlawful Machinegun Parts Act

Impact

If passed, SB1374 would significantly alter the landscape of firearm ownership and regulation in the United States, directly impacting individuals and businesses involved in the sale and modification of firearms. The bill mandates that individuals who own modified semiautomatic firearms must register them within a specified timeframe, thus establishing a system of accountability and tracking of these weapons. Lawmakers argue that this legislation is crucial for enhancing public safety by closing loopholes that currently allow for the possession and use of devices designed to effectively turn semiautomatic firearms into machineguns.

Summary

SB1374, known as the Banning Unlawful Machinegun Parts Act (or BUMP Act), seeks to amend Title 18 of the United States Code to prohibit the import, sale, manufacture, transfer, and possession of specific devices related to semiautomatic firearms that can increase their firing rate or mimic machinegun operation. The bill defines semiautomatic firearms and outlines what constitutes illegal modifications, specifically targeting devices that eliminate the need for separate trigger movements for each shot. This legislation arose as a response to concerns regarding gun violence and the proliferation of rapid-fire devices in many communities.

Contention

Debate surrounding SB1374 is expected to be contentious, with supporters advocating for stronger control measures on firearms to reduce violence, while opponents may argue that such legislation infringes on Second Amendment rights and limits responsible gun ownership. Critics of the bill maintain that it could disproportionately affect hobbyists and collectors who have legally modified firearms for personal use. Additionally, there is concern about the feasibility of implementing such regulations and the potential for unintended consequences that could arise from the enforcement of these new laws.

Companion Bills

US HB2799

Related Closing the Bump Stock Loophole Act of 2025

Previously Filed As

US SB1909

BUMP Act of 2023 Banning Unlawful Machinegun Parts Act of 2023

US HB396

Closing the Bump Stock Loophole Act of 2023 This bill subjects bump stocks to regulation under federal firearms laws. Specifically, the bill adds bump stocks to the list of firearms subject to regulation (e.g., registration and licensing requirements) under the National Firearms Act. Additionally, it includes bump stocks in the list of firearms subject to regulation (e.g., background check requirements) under the Gun Control Act of 1968.

US SB14

Age 21 Act This bill raises the minimum age to purchase a large capacity ammunition feeding device or semiautomatic assault weapon from 18 to 21 years of age.

US HB4289

Assault Weapon Financing Accountability Act

US HR1302

Providing for consideration of the bill (H.R. 396) to regulate bump stocks in the same manner as machineguns.

US SB3921

Medicaid Bump Act

US HB5135

Assault Weapons Excise Act

US HB8600

GOSAFE Act Gas-Operated Semi-Automatic Firearms Exclusion Act

US HB4347

Mass Shooter Prosecution Act of 2023

US HB3155

Protecting the Second Amendment through Responsible Gun Ownership Act

Similar Bills

No similar bills found.