Do guns come with safety locks already?

Do guns come with safety locks already?

Paul Helmke (President, The Brady Campaign) gives expert video advice on: Do guns increase violent crime?; Is it safer to use a gun in an attack?; Why is there opposition to gun locks? and more...

Guns have safeties. An individual with a gun generally can set the gun so it's not going to come out without moving the safety into a different position. But that's just generally a manual move of a lever on the gun, if you will. A lock is something that would make it impossible for someone to fire the gun or to discharge the bullet from the gun without removing the lock or removing part of the lock mechanism from the gun. It would require a key or some sort of a combination to make the gun operable.