Quote:
Originally Posted by tedan628
i opened the gearbox of GR25. It already has metal bushings and it;s v2 kind, except it has longer air nozzle and cylinder head. Everything else inside are good. I think the piston is polycarbonate already.
So would m120 spring need new sets of gears, piston, gearbox case, and motor?. Can the original sets handle m120?.
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Yes the stock gears can handle M120.