Sponsors (24)
Requires new rules that force most U.S.-made firearms to carry a second serial number that is placed inside the receiver or only visible in infrared light, expands the legal definitions of "receiver" and "unfinished frame or receiver," and directs the Attorney General to write implementing regulations on background-check record retention and mandatory dealer inventory checks. It also amends multiple prior appropriations provisions to prohibit using federal funds to impose any tax or fee tied to implementing the instant background-check process. Sets firm deadlines for agency rulemaking (12 months for the internal/IR serial-number requirement; 180 days for record-retention and inventory rules), creates new compliance duties for manufacturers and licensed dealers, and changes criminal- and regulatory-related definitions that affect how firearms and partially finished parts are treated under federal law.
The Attorney General must promulgate final regulations within 12 months after the date of enactment.
Final regulations must require each firearm manufactured in the United States on or after the regulation’s effective date to be marked with a serial number located inside the receiver or visible only in infrared light, in addition to the serial number otherwise required by law.
Amends 18 U.S.C. § 921(a), paragraph (3) by adjusting punctuation and by replacing text so that paragraph (3) includes a new subparagraph (E): “any combination of parts designed or intended for use in converting any device into a firearm and from which a firearm may be readily assembled.”
Amends 18 U.S.C. § 921(a), paragraph (10) by striking “and the” and inserting “the”, and by inserting text before the period (text of the inserted material is not shown in this excerpt).
Inserts after paragraph (30) a new paragraph (31) in 18 U.S.C. § 921(a) defining “unfinished frame or receiver” to mean a forging, casting, printing, extrusion, machined body, or similar article that (A) has reached a stage in manufacture at which it may readily be completed, assembled, or converted to be used as the frame or receiver of a functional firearm; or (B) is marketed or sold to the public to become or be used as the frame or receiver of a functional firearm once completed, assembled, or converted.
Who is affected and how:
Federally licensed firearms dealers: Will be required to perform physical inventories and follow any recordkeeping procedures set by the Attorney General. This creates new operational duties, potential compliance costs (staff time, systems), and possible penalties if regulations specify enforcement measures.
Firearm manufacturers and builders (including companies that produce frames/receivers and parts): Must add an internal or IR-visible secondary serial number to firearms manufactured in the U.S. after the rule takes effect. A broader legal definition of "receiver" and a new definition of "unfinished frame or receiver" can bring more partially finished parts and kits within federal regulation, affecting production lines, marking processes, and supply chains.
Individuals who assemble firearms at home or purchase unfinished parts (so-called "ghost gun" builders): May be more directly regulated if unfinished frames/receivers are now defined as regulated components; additional marking requirements could make privately assembled firearms traceable if built after the rule's effective date.
Courts, law enforcement, and federal agencies (Department of Justice, FBI/NICS, ATF): Will need to implement, administer, and enforce new rules and handle increased record retention and potential increases in traceable serial numbers. DOJ/ATF will create and manage the technical and compliance standards and oversee enforcement.
Taxpayers and the federal budget: The bill does not appropriate new funds; it amends appropriations language to bar using federal funds to implement taxes or fees tied to instant-background-check implementation, which may limit funding options for program costs and shift costs to industry or general appropriations unless other resources are provided.
Operational and legal implications:
Compliance costs and timeframes: Manufacturers and dealers will likely incur equipment, marking, recordkeeping, and training costs. The 12- and 180-day rulemaking deadlines compress agency timelines for detailed guidance.
Regulatory uncertainty and litigation risk: Broadening the definition of regulated components and imposing new marking requirements have previously been legally contentious; affected parties may challenge definitions or procedures in court, creating litigation risk and potential delays.
Privacy and data concerns: Increased retention of instant-check records raises data management and privacy questions for background-check systems; agencies will need to secure and manage larger volumes of sensitive data.
Enforcement mechanics depend on forthcoming regulations: Penalties, inspection protocols, acceptable marking standards (IR specs), and inventory frequency will all be defined by the Attorney General's regulations, which determine the practical burden on affected parties.
Last progress June 6, 2025 (8 months ago)
Introduced on June 6, 2025 by Mike Quigley
Referred to the House Committee on the Judiciary.