This trigger was taken off of an old Sako that was rusted. The safety button is very loose and does not lock into place, and I don't know why. The trigger needs to be re installed as well as the spring shown below. Needs to be thoroughly cleaned, parts may have to be removed and polished. I am not a gunsmith so I bought a new trigger for myself. Asking $40 shipped - you should only undertake this project if you have the experience necessary to put it back together. I assume no liability. Thanks, message if interested.