A bill for an act relating to firearms, including background checks for acquiring pistols or revolvers, identification markings on firearms and firearm parts, trigger locks, extreme risk protective orders, mental health funding, certain firearm transfers, and certain related crimes, and providing penalties.

This bill, Iowa's "Charlie Kirk and Melissa Hortman Firearm Regulation Act," requires background checks for pistol and revolver purchases from any seller (not just dealers), prohibits sales to those under 21, and mandates unique serial numbers for homemade firearms by December 2026. It also requires identification markings on all firearms and unfinished frames/receivers, prohibits altering or removing these marks, and includes provisions for extreme risk protective orders and mental health funding. The law directly affects firearm manufacturers, sellers, and buyers by adding new registration and marking requirements for homemade weapons and tightening background check processes for pistols. Key mechanisms include the new serial number system for homemade firearms, age restrictions on pistol purchases, and penalties for tampering with identification marks.