These guys are designing these airsoft guns for AERIAL R/C dogfights! New prototype: The MAC614. Small power and small size for defensive turret. (forumgratuit.org) -The barrel even reciprocates, and is also the valve striker on some of the designs... -These could easily be mod'd for this sport...
It’s interesting. It’s like a hybrid between fast and big gun tech. I’m not sure what the advantage is of that design over the fast gun o-ring + interrupter. - You don’t need to buy a clipboard valve, which is nice. Downsides.. I think it would be as lossy as big gun, since it has no o-ring to build pressure, plus the air escapes for one full service rotation. The valve is now a custom part which can go wrong.
Those are a lot bigger than what we use. Just replacing a solenoid valve with a motor and gearbox to strike a pin valve. We now have designs that can fit a full 1.5U canon inside a barbette.
It looks more closely related to a paintball cannon in terms of operations, except it uses a spring driven striker to fire. And a motor to cycle the breech and charge the spring. No regulator that I could see, and it needed a combination of gravity and spring feed to load. It looks like they're in Europe, so they may have to use airsoft pellets due to laws. I don't think I would use one on any of my ships, but it is a novel solution to the challenge.