Dad brought this home from service and i don't know that he ever shot it. I tried to shoot it and couldn't get any action from the trigger,nor felt any hammer / firing pin drop. Disasembled it and I do not understand the firing mechanism. Looking for info on net, I found a recommendation to go to this site and ask question about a luger problem. That, "There would be 20 luger experts answer real quick". Any help will be greatly appreciated!