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Mp22k firing pin help (self.help)

submitted 1 month ago by NotanAFTAgent to c/help

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I have a new mp22k build and for whatever reason I cannot get it to set off any rounds. I've tried multiple brands and all I get are dimpled cases and no pew sound. I'm pretty sure it's my firing pin but it looks the same as the other two builds that do work. Should I file it down to a point or leave it like it came from scs?

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[–] Print_a_22 3 points 1 month ago

Not a point, but do file the sides, reducing the tip to about 1/2 width leaving a flat front.

What spring are you using for fire pin?