A federal appeals court panel from the Ninth Circuit has unanimously struck down California's "one-gun-a-month" law, ruling that it violates the Second Amendment. The law prohibited residents from purchasing more than one firearm within a 30-day period. The court emphasized that the Second Amendment expressly protects the right to possess multiple firearms, rejecting the state's argument that the amendment only protects the right to own a single gun. This ruling affirms a previous trial court decision and was the result of a lawsuit filed by the Second Amendment Foundation. The panel's decision was unanimous, with a 3-0 vote. The ruling has been noted as a setback for gun control advocates and highlights ongoing legal challenges to firearm regulations in California and potentially other states.