Abstract: A high-pressure air magazine with an outer housing, a high-pressure chamber formed within the outer housing, a fill valve disposed between the high-pressure chamber and a fill port, and an air regulator configured to selectively pass air from the high-pressure chamber to a low-pressure chamber within the outer housing. The air regulator has a regulator ball valve positioned between the high-pressure chamber and the low-pressure chamber. A spring biases the regulator ball valve to a closed position. A regulator valve screw is configured to adjust a magnitude of the bias on the regulator ball valve. A regulator piston in contact with the regulator ball valve is configured to push the regulator ball valve to an open position when pressure within the low-pressure chamber lowers past a predetermined pressure. A regulator piston support nut is configured to adjust the predetermined pressure.

Abstract: A virtual combat training system includes a plurality of shock units adapted to attach to a different part of a body of a trainee, a helmet to display a virtual environment, a body node on the body of the trainee and a central control unit remote from the trainee. The central control unit tracks location data of the shock units including absolute position of each shock unit in relation to the central control unit and a relative position of each shock unit in relation to the other shock units, determines a location and orientation of the trainee, transmits actuation signals to the shock units to simulate an injury in response to events occurring within the virtual environment based on the location and the orientation of the trainee, and transmits virtual environment data to the virtual technology helmet. The body node communicates between the shock units and the central control unit.

Abstract: A tether-less recoil kit for a weapon having a trigger with a receiver insert, an air connector plate, and a high-pressure air drum magazine. The receiver insert is configured for attachment to a receiver of a weapon and has a charge chamber and a bolt carrier. The charge chamber has a plunger extending through a rear end of the charge chamber and an air-receiving nipple configured to receive air into the charge chamber. The air connector plate fluidly couples the high-pressure air drum magazine to the receiver insert. The high-pressure air drum magazine has a high-pressure chamber within an outer housing and an air regulator configured to selectively pass air from the high-pressure chamber to the air connector plate. When the bolt carrier impacts the plunger, a burst of air may be released from the air connector plate into the charge chamber.

Abstract: A training method and apparatus are disclosed. The training method may include converting a firearm capable of firing live ammunition to a pneumatic training device incapable of firing live ammunition. The training method may further include cycling a pneumatic training device through one or more cycles. Each of the cycles may simulate an actual firing of the firearm. Each of the cycles may also include triggering a trigger assembly of the pneumatic training device, using a charge of a pressurized gas to reset the trigger assembly, and advancing a counter of the pneumatic training device. After a certain number of cycles have been completed, a next cycle may be attempted, but not completed. Accordingly, the training method may enable a user to safely and realistically practice reloading, jam or malfunction clearing, or the like.