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HELP! Maruzen MP5K wont cycle.

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For some reason, it seems like the striker pin does not have enough energy to actuate the valve any longer. I have not perceived any difference in the rebound force of the bolt carrier from when it was working. And visually, the strike pin looks physically intact.

I stuck my finger in the magwell and put it up against the pin while dry firing, and the striker seemed to function ok, although I noticed that there is a bit of up and down play on pin itself. I suppose there could be enough deflection there to keep the pin from properly depressing the valve, but I doubt it.


Im at a loss, It just refuses to fire now, And I cant think of anything that changed between when it was operating fine, to when it quit.


Any input would be greatly appreciated.



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