Assuming there's a return spring in there somewhere, looks like it would work
I can't draw good springs in sketchup, but I figured you understood there was one because of the previous design
It will cycle like mad or not at all with constant flow, but for semi auto with pulse air it should be perfect.
Do you think it HAS to be pulse air? Would a blowgun be enough? I mean, once the piston loads a round, it won't some back until it shoots because I'll hold the trigger down until it pops. Then I'll let go and let a new round fall in.
Jack you posted good diagrams but they won't work in my application and I also like servicability... I don't even think I can make any of those anyway