On 1 July, 2019, the Second Amendment Foundation and the Calguns Foundation joined to file a legal challenge to the California ban on the purchase of firearms by law-abiding adults 18-20 years old. The ban was signed by then Governor Brown on 28 September, 2018. It went into effect, as part of SB 1100, on 1 January, 2019.The ban prohibited the sale of all firearms to people between who are 18-20 years old, with a few exceptions. If the person is in the active member of the military, a peace officer, has been honorably discharged from the military, or...