Introduced February 4, 2025 by Joaquin Castro · Last progress February 4, 2025
The bill strengthens tools to deter firearm trafficking and hold sellers accountable while preserving existing owners through grandfathering, but it tightens ownership rights, creates new compliance burdens and privacy risks, and raises liability and administrative costs for sellers, manufacturers, and the government.
Existing lawful owners of .50‑caliber‑capable rifles can keep, sell, or transfer them and have a 12‑month, no‑fee window to register, avoiding immediate criminalization and an immediate financial burden for compliance.
Expanded ATF reporting for multiple‑rifle sales improves trace data for investigations and can help law enforcement reduce illegal diversion and trafficking of rifles.
The bill creates civil accountability for manufacturers and sellers who knowingly transfer firearms to persons covered by Kingpin Act prohibitions, which can deter sales to designated narcotics traffickers and provide remedy to victims.
Most civilians will be prohibited from buying, selling, manufacturing, or importing .50‑caliber‑capable rifles, substantially restricting private ownership rights and resale markets.
Owners who do not register during the 12‑month window risk criminal penalties once the NFA classification takes effect, creating significant legal exposure for noncompliant individuals.
Classifying these rifles under the NFA increases federal regulatory oversight and compliance burdens on owners and small firearms businesses, complicating lawful transfers and business operations.
Based on analysis of 5 sections of legislative text.
Prohibits import, sale, manufacture, transfer, and possession in interstate or foreign commerce of rifles capable of firing .50 caliber ammunition for most private persons, while allowing federal, state, and local government entities and grandfathered pre-enactment owners to possess them. Requires owners of unregistered .50‑caliber-capable rifles to register them with the National Firearms Registration and Transfer Record within 12 months (no registration tax or fee), moves such rifles into the National Firearms Act classification after 12 months, and protects registration data from use as criminal evidence against the registrant for prior or concurrent violations. Also creates a civil‑liability exception to the Protection of Lawful Commerce in Arms Act for sellers who knowingly (or with reasonable cause to know) traffic in designated foreign narcotics‑related transfers; bars sales/transfers to certain foreign narcotics traffickers designated under the Kingpin Act and requires NICS to treat those foreign persons as prohibited; and expands the existing multiple‑sales reporting requirement to include rifles alongside pistols and revolvers.