Which battery are you using, 12V or 9.6v Systema or aftermarket? Did the M90 have a steel rack gear, or alloy? Alloy is silver coloured, steel is, well, like steel.
I know that some M90s even up to last summer were coming with alloy rack gears, as used to be the spec with Gen 1-3 for M90 to M130. Now, they should all be steel.
Did this same gun have the same failure with any other cylinders?
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Age verifier Northern Alberta
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