2. Specific Safety Features Required: California, Massachusetts and New York also define as "unsafe handguns" those lacking certain specified safety features to protect users against unintended discharge, including safeties to prevent accidental firing, chamber load indicators, and magazine disconnect mechanisms. A "chamber load indicator" is a device that plainly indicates that a cartridge is in the firing chamber. A "magazine disconnect mechanism" is a mechanism that prevents a semiautomatic pistol that has a detachable magazine from operating to strike the primer of ammunition in the firing chamber when a detachable magazine is not inserted in the pistol.21
New York requires that all handguns be equipped with a safety device to prevent unintended firing.23