patrykj26 Posted 3 hours ago Share Posted 3 hours ago Hello, I have a Specna arms SA-BO3 and my piston seems to jam in the outward position (when the spring is fully compressed) only way i found to fix my problem temporarily is to loosen the bolt that holds the spring in. not ideal as its now less powerful. any suggestions. i have stripped and rebuilt the gearbox nothing looked damaged. piston moves freely in the cylinder. gun jams when in fully auto or quick single fire. Link to comment Share on other sites More sharing options...
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