Illegal Alien NICS Alert Act

This bill amends the Brady Handgun Violence Prevention Act to require the National Instant Criminal Background Check System (NICS) to automatically notify U.S. Immigration and Customs Enforcement (ICE) and state/local law enforcement whenever a background check indicates someone illegally in the U.S. attempted to purchase a firearm. It directly affects law enforcement agencies (ICE, state, and local police) by mandating they receive real-time alerts about potential violations of existing law (18 U.S.C. § 922(g)(5)(A)), which prohibits firearm transfers to undocumented immigrants. The key mechanism is an automatic system notification triggered during background checks, including all relevant data from the NICS database. This changes how information is shared but does not alter the underlying prohibition on firearm sales to undocumented immigrants.