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tienly 30k motor
SHS 13:1 gears
SHS metal rack piston
36rps
It's really easy to get the rps you want, the real technical part is making it work reliably, which is mostly just shimming, air seal, and doing your AOE.
I've got my M14 shooting 36rps and feeding .36s no problem. But I also put about $300 of parts in it.
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