An optical device controller, for controlling an optical device positioned in a barrel-like portion of an imitative gun facing the outside through a muzzle-like opening of the barrel-like portion. An operation controlling portion is provide for shifting the optical device from an inoperative condition to an operating condition in response to movement of a trigger-like portion, a movable valve provided on a gas leading passage for controlling the gas leading passage to be open in response to the movement of the trigger-like portion, and a sliding member having a pressure receiving portion formed therein positioned at the back of the barrel-like portion for receiving pressure of the gas coming through the gas passage formed in the gas passage forming portion and the gas leading passage which is controlled to be open by the movable valve and provided to be moved back along the barrel-like portion with the pressure of the gas acting on the pressure receiving portion.

A laser pistol and a method or system for retrofitting sharpshooting pistols whose recoil mechanism is complicated in design and has an unrealistic trigger resistance. A conversion of known sharpshooting pistols into simulation-type laser pistols, whose mechanism has a realistic trigger resistance and a corresponding recoil, and their simple reconversion is provided. This is achieved by providing that the compressed-gas magazine (16) is adapted in its dimensions to the magazine of the particular model of a previously known piston that is to be retrofitted, and the connection valve (14) is connected to a magazine connection piece (10) which has a through bore (34) having an opening pin (13) for the connection valve (14) and a connection (12) with the compressed-gas magazine (16) and a hose coupling (11) to an expansion chamber (7) in the slide (29) above the barrel block (8); and that the striking pin (35) and its location and actuation in the model to be retrofitted are maintained; and that the piston (6) in the expansion chamber (7) is disposed with a bore extending in the longitudinal axis and with a firing pin piece (5) movable in the bore back and forth, is disposed upstream of the tappet (4) of the valve (2), and between the firing pin piece (5) and the inner wall of the piston a slight slip or play is provided for ventilating the expansion chamber (7); and that the spring rod (21) and a return spring (36) are adapted to the existing pressure conditions, in order to press the piston (6) and the firing pin piece (5) back via the slide (29).

A training firearm that provides a realistic recoil effect. The firearm, preferably a pistol, may be an actual firearm retrofitted with a self-contained "blow back" assembly. Usually, the pistol will include a laser device that emits a laser beam readable by a target system. The laser replaces live rounds, and the blow back assembly causes return of the slide to cycle in a manner similar to that caused by live ammunition in an unmodified weapon. The blow back assembly is driven by a disposable cartridge of compressed gas self-contained in the handle of the pistol. A valve integrated with the firing pin releases a burst of gas when the firing pin is impacted by the hammer. The gas pushes back the slide and recocks the hammer for the next "round." This system provides law enforcement and military personnel a realistic tool to develop recoil management and target re-acquisition skills.

A regulated gas supply system having a body defining a pressurized gas reservoir connected to a high-pressure regulator that regulates the high pressure gas from the gas reservoir to disperse the gas at a desired pressure. The regulating assembly includes a piston chamber with a piston slidably positioned in the piston chamber. A spring is positioned between one side of the piston and the piston chamber, with the piston including a piston channel to allow pressurized gas to flow through the piston. Pressure is developed on the piston opposite the spring that is proportional to the force of the spring, providing a balanced piston. The system is miniature and self-contained to fit inside any number of small pneumatically operated devices.

A light gun includes a trigger unit; a grip coupled to the trigger apparatus; and a barrel unit coupled with the trigger apparatus. The trigger unit has a trigger and a hammer, and the barrel unit includes a light emitting unit which emits a light bullet in response to generation of an impact by the hammer when a trigger operation is carried out by pulling the trigger.