Question for you drilling guys. A friend brought a German hammer drilling to me today that is a 16X16X9.3X72R. I think it is a Stahl but has no names on it. It has a typical safety slide on top tang. There is no cocking lever in the action for the rifle barrel. I tried pushing the front trigger forward to see if that cocked it but it didn't. The tang slide I would assume to be the way to fire the rifle barrel with the front trigger. Please educate me.

Sam