Stop Arming Cartels Act of 2025

The Stop Arming Cartels Act of 2025 prohibits civilian possession, sale, or transfer of rifles capable of firing .50 caliber ammunition, with exceptions for government use and rifles lawfully owned before the bill's enactment. It requires owners of such rifles to register them with the federal government within 12 months, without fees, and adds these rifles to the National Firearms Act registry. The bill also creates new federal firearm restrictions for significant foreign narcotics traffickers identified under the Foreign Narcotics Kingpin Designation Act and expands reporting requirements for rifle sales to include all rifles. This directly affects civilian rifle owners, sellers, and individuals designated as foreign narcotics traffickers.