I was asked to look at a gun for a friend that is having issues with the safety not working at all. The button whether it is on safe or fire will still let the hammer fall and fire off a round. After cleaning all the gunk out of the trigger group and replacing the safety button, detent ball and spring I am still experiencing the same issues.
Obviously something isn't stopping the trigger from being able to be pulled when in safe mode, does anyone have a ideas what could be causing this?