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S 1374 119th Congress

BUMP Act

A bill to amend title 18, United States Code, to prohibit machinegun conversion devices and illegal modifications of semiautomatic firearms, and for other purposes.

Official Title as Introduced Congress.gov

Introduced Apr 9, 2025 Latest action Apr 9, 2025 Sponsor: Sen. Heinrich, Martin [D-NM] Crime and Law Enforcement
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Source: Congress.govUpdated 2026-08-03 11:15:40 UTC.

Source-linked procedural record

Bill journey

4 dated records

This is a chronology, not a progress score. Politically.com does not classify stages or infer what comes next. Records sharing a date are grouped because not every source field supplies a time.

Congress.gov Recently refreshed U.S. Senate XML Recently refreshed
Introduction 1 One supplied introduction date.
Official actions 2 2 dated action records.
Committees 1 1 undated relationship.
Amendments 0 No record is cached.
Text versions 1 1 dated, 0 without a supplied date.
House roll calls 0 No exact legislation-key match in the House-vote cache.
Senate roll calls 0 No exact document-key match in the Senate-vote cache.
Related measures 1 1 undated relationship.
Linked law 0 No linked law record is cached; this does not predict outcome.

  1. Official action Congress.gov

    Read twice and referred to the Committee on the Judiciary.

    IntroReferral · Senate

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    Official action Congress.gov

    Introduced in Senate

    IntroReferral · Library of Congress · Code 10000

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    Text version Congress.gov

    Introduced in Senate

    A dated text-version record is available.

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View the complete bill journey as an accessible table
Every dated cached record linked to S 1374. Same-date row order does not assert procedural sequence.
Date and timeRecordOfficial detailSource
IntroductionIntroduced Introduced in the Senate. Congress.gov
Official actionRead twice and referred to the Committee on the Judiciary. No additional detail supplied.IntroReferral · Senate Congress.gov
Official actionIntroduced in Senate No additional detail supplied.IntroReferral · Library of Congress · Code 10000 Congress.gov
Text versionIntroduced in Senate A dated text-version record is available. Congress.gov

House roll calls join only on matching Congress, legislation type, and number. Senate roll calls join only on matching source-supplied document type and number, not question text. Committee and related-measure relationships have no date in their relationship records and therefore are counted above but never placed on the chronology.

Congressional Research Service

CRS summary

Introduced in Senate Apr 9, 2025

Banning Unlawful Machinegun Parts Act or the BUMP ActThis bill generally prohibits the import, sale, manufacture, transfer, receipt, or possession ofa 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; ora 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.

Official documents

Text versions