If you look directly on top of the slide forward of the rear sight, you will notice a rectangular shaped piece if steel that sits flush with the steel of the slide when the trigger is fully forward. With the gun unloaded, pull the trigger slowly, you see this rectangular block rise out of the slide as you pull the trigger to the rear, it will drop back down as you release the trigger. This is the firing pin safety block. The firing pin has a relief cut on the right side about midway, and this safety block sits firm and locks the firing pin from hitting the primer unless the trigger is pulled fully through a cycle. That's your safety device for your particular pistol.
Best-MC