Gun with pivoting barrel, rotary ammunition cylinder, and double action firing mechanism

GUN WITH PIVOTING GUN, CYLINDER OF ROTATING AMMUNITION, AND DOUBLE ACTION SHOOTING MECHANISM, PROVIDED WITH A CANNON VALVE MECHANISM. THE PIVOTING CANNON ASSEMBLY INCLUDES A PROJECTIBLE ROTATING CYLINDER AND A CYLINDER GRADUATION MECHANISM WHEN THE TRIGGER IS PRESSED. A PERCUTOR IS ARMED BY A TRIGGER LEVER, AND A CAM ON THE PERCUTOR LIFTS THE DECOUNTER LEVER FROM THE PERCUTOR, WHEN THIS REACHES ITS ARMED POSITION. THE VALVE MECHANISM INCLUDES A SLIDLY MOUNTED VASTAGE IN A BODY. A PART OF VASTAGO PIN IS EXTENDED BY A VALVE SHUTTER AND A SHUTTER RETAINER, AND THE RETAINER IS RETAINED IN THE BODY BY RETAINING PINS. A FACILITY ACCOMMODATION IS CONNECTED TO THE BODY, AND A FITTER IS SLIDELY MOUNTED WITH THE ACCOMMODATION. THE FIADOR CAN BE COUPLED TO THE PROJECTILE CAMERAS OF THE CYLINDER.