BUMP Act
Sponsor

Full profile: /officials/H001046
Source: Congress.gov · FEC
Cosponsors (30)
Members who have signed on to support this bill since introduction. Source: Congress.gov.
- Adam B. Schiff (D-CA)Original· 2025-04-09
- Alex Padilla (D-CA)Original· 2025-04-09
- Amy Klobuchar (D-MN)Original· 2025-04-09
- Angus S. King Jr. (I-ME)Original· 2025-04-09
- Bernard Sanders (I-VT)Original· 2025-04-09
- Catherine Cortez Masto (D-NV)Original· 2025-04-09
- Chris Van Hollen (D-MD)Original· 2025-04-09
- Christopher A. Coons (D-DE)Original· 2025-04-09
- Cory A. Booker (D-NJ)Original· 2025-04-09
- Edward J. Markey (D-MA)Original· 2025-04-09
- Jack Reed (D-RI)Original· 2025-04-09
- Jacky Rosen (D-NV)Original· 2025-04-09
- Jeanne Shaheen (D-NH)Original· 2025-04-09
- John Fetterman (D-PA)Original· 2025-04-09
- Mark Kelly (D-AZ)Original· 2025-04-09
- Mazie K. Hirono (D-HI)Original· 2025-04-09
- Michael F. Bennet (D-CO)Original· 2025-04-09
- Patty Murray (D-WA)Original· 2025-04-09
- Peter Welch (D-VT)Original· 2025-04-09
- Richard Blumenthal (D-CT)Original· 2025-04-09
- Richard J. Durbin (D-IL)Original· 2025-04-09
- Ron Wyden (D-OR)Original· 2025-04-09
- Sheldon Whitehouse (D-RI)Original· 2025-04-09
- Susan M. Collins (R-ME)Original· 2025-04-09
- Tammy Duckworth (D-IL)Original· 2025-04-09
- Tim Kaine (D-VA)Original· 2025-04-09
- Tina Smith (D-MN)Original· 2025-04-09
- Brian Schatz (D-HI)· 2025-07-22
- Andy Kim (D-NJ)· 2025-10-07
- Elizabeth Warren (D-MA)· 2026-01-29
Latest Action
The most recent step in the bill's legislative path. Committee Activity below shows referrals and reports; the full action-by-action history including floor proceedings lives at Congress.gov →
Plain-English Summary
Banning Unlawful Machinegun Parts Act or the BUMP Act This bill generally prohibits the import, sale, manufacture, transfer, receipt, or possession of a device that is primarily designed, or redesigned, to increase the rate of fire when attached to a semiautomatic firearm; a device, part, or combination of parts that is designed and functions to increase the rate of fire of a firearm; or a semiautomatic firearm that has been modified to materially increase the rate of fire or to approximate the action or rate of fire of a machine gun. Additionally, the bill adds to the list of firearms subject to regulation under the National Firearms Act semiautomatic firearms that have been modified to materially increase the rate of fire or approximate the action or rate of fire of a machine gun.
Plain-English rewrite of the Congressional Research Service summary published on Congress.gov. Cached and reviewed.
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