I´m thinking about building a Trap-Marker:
The TPX-Valve will have no powertube tube to get it max. short, but there will be a gas through slide which is changing the gas flow between upper and lower Barrel. By opening the breach the slide will get locked in upper Position after firing the first shot the slide will move by spring in the lower Position to fire the lower Barrel.
The TPX-Valve will have no powertube tube to get it max. short, but there will be a gas through slide which is changing the gas flow between upper and lower Barrel. By opening the breach the slide will get locked in upper Position after firing the first shot the slide will move by spring in the lower Position to fire the lower Barrel.
