New semiautomatic handguns sold in California must have a pair of safety features (a chamber load indicator and a magazine detachment mechanism) meant to prevent accidental discharges. They must also be able to “microstamp” identifying information on cartridges or shell cases (so as to aid police investigations). Ninth Circuit: None of which offends the Second Amendment. Partial dissent: The microstamping requirement is an effective ban on new handguns, if, as manufacturers allege, they cannot comply with the requirement. Indeed, no new handgun has been sold commercially in the state since it was enacted, which, perversely, has kept guns with the two safety features off the market.