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Congress·In Committee·S. 1374

Senate BUMP Act Would Ban Machinegun Conversion Devices and Fast-Fire Gun Modifications

BUMP Act

12 months ago·View on Congress.gov
⏸

Stalled

No legislative action in over 90 days.

Legislative Progress

Senate
House
President
Law

Key Points

  • Would ban devices and parts meant to make a semi-automatic gun fire much faster, including items that mimic a machinegun’s firing speed.
  • Would also ban owning or selling a semi-automatic gun that has been modified to fire much faster or act like a machinegun.
  • After the law takes effect, people would have 120 days before the ban applies to importing, selling, making, transferring, receiving, or possessing these items.
  • People who already legally own a gun modified this way before the law is enacted would have to register it, then could keep it if it stays registered.
  • The ban would not apply to guns and equipment handled under the authority of federal, state, local, or Tribal government agencies.
Gun PolicyCriminal Justice

Impact Analysis

Personal Impact

How this policy affects specific groups of people

Negative Impacts(1)
Gun Owner
Hurts
Mixed Impacts(5)
Criminal Record
Neutral
Small Business Owner
Neutral
Gig Worker
Neutral
Federal Employee
Neutral
Tribal Member
Neutral

Milestones

2 milestones2 actions
Apr 9, 2025Senate

Read twice and referred to the Committee on the Judiciary.

Apr 9, 2025

Introduced in Senate

What Happens Next

Projected impacts based on AI analysis

Immediately after enactment

120-day grace period begins after the bill becomes law

People and businesses have a short window to stop selling or making covered fast-fire devices and to figure out whether a firearm modification is now illegal.

120 days after enactment

Ban on covered conversion devices and illegal high-rate modifications takes effect

After day 120, possessing, selling, making, importing, transferring, or receiving covered devices (and certain modified semiautomatic firearms) could trigger federal criminal charges.

Not later than 120 days after enactment

Registration deadline for certain already-modified semiautomatic firearms

If you lawfully owned a semiautomatic firearm modified to increase rate of fire before enactment, you must register it by day 120 to keep it legally (and to lawfully transfer it later).

During the 120-day window

Federal agencies update enforcement guidance and compliance messaging

Gun shops, gunsmiths, and owners will likely see new advisories about which products/modifications are prohibited and what paperwork is required to stay legal.

Source Information

Document Type

Congressional Bill

Official Title

BUMP Act

Bill NumberS 1374
Congress119th Congress
ChamberSenate
Latest ActionRead twice and referred to the Committee on the Judiciary.

Sponsor

Cosponsors

(30)
D: 27R: 1I: 2

Analysis generated by AI. Always verify with official sources.