Stop Arming Cartels Act of 2025

The Stop Arming Cartels Act of 2025 bans the civilian sale, transfer, or possession of rifles capable of firing .50 caliber ammunition, directly affecting individuals and businesses handling these weapons. It includes exceptions for government use and rifles owned before the law's enactment, and requires owners to register such rifles with the federal registry within 12 months without fees. The bill also adds new liability for sellers who knowingly transfer these rifles to foreign narcotics traffickers or individuals designated under the Foreign Narcotics Kingpin Act. Additionally, it expands firearm sales reporting to include rifles and creates a new federal prohibition on firearm transfers to designated foreign traffickers.