Colorado’s New Specified Semiautomatic Firearm Law Takes Effect August 1, 2026 What Colorado gun owners need to know before buying certain semiautomatic firearms after the new law begins. View Firearms Safety Course Schedule What Changes with the Colorado SSF law on August 1, 2026? Beginning August 1, 2026, Colorado’s new Specified Semiautomatic Firearm law changes the purchasing process for certain semiautomatic firearms. The law does not make every semiautomatic firearm illegal, and it does not automatically affect every firearm a person already owns. The biggest change is that many future purchases and transfers will require additional steps before the firearm can be lawfully transferred. The Law Does Not Ban Existing…