you basically answered yourself, Just think of a V2 with the upper cut off, instead of working on one complete gearbox, you have two seperate peices, one with the spring piston set up, other with gears and trigger.
Its a neat idea, really easy to work on. I hear the new ICS's are alot better then the old ones, I had an older one and it just never wanted to work till I replaced pretty much everything inside.
Works great now!
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W1-5
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