This is my duty weapon. It decocks with each full release of the trigger. It can be fired 'single action' by half releasing the trigger after each round (very difficult to master.) It's operation is simple: when loaded and chambered, you pull the trigger - it goes bang (no switchable safety or decocking lever). Mine is chambered 40 S&W. I have never had a stoppage of any type that was not user-induced (once during initial firarms training with my department, I failed to seat a magazine propperly.) This is a substatial weapon.