Smart gun

A personalized gun, or smart gun, is a firearm that includes a safety feature or features that allow it to fire only when activated by an authorized user. These safety features can prevent misuse, accidental shootings, gun thefts, use of the weapon against the owner, and self-harm. Smart guns distinguish between authorized users and unauthorized users in several different ways, including the use of RFID chips or other proximity tokens, fingerprint recognition, magnetic rings, or mechanical locks. Related to smart guns are other smart firearms safety devices such as biometric or RFID activated accessories and safes.