Nice job here.
However, if I may...do some positive criticism
It's ingenious. But it could be more. ==> It seems like it has too many parts to me. And in general, too many parts = too many failure possibilities.
I like the idea of a mechanical/ electrical hybrid. But in my opinion, you could do it more simple.
See, like using springs on guided rods, some sort of bolt catch/release mechanism that doesn't use compressed air.
However, since this is a cool project and you're doing good with it... kuods
Keep up the good work!
And don't worry...the voice will eventually get lower
