 FACT: In the roof top shoot out, when Ness falls off the roof to the  ledge, a shot of Dragos pistol shows the slide mechanism is locked  back, indicating it is out of ammunition. After Ness takes a shot at  him, Drago is running away and tries to shoot back and you hear the  hammer click three times. In pistols of the type he was using, with  the slide locked back, the trigger and hammer mechanism are  disabled.