Your problem has nothing to do with the extractor as the extractor has nothing to do with "extracting" a spent round. It is only there to extract live rounds and control the spent round till it hits the ejector. I would guess that your problem comes from the bolt not cycling fully to the rear on firing. You haven't said how it functions with the stock 10 rounder so it makes it more difficult to diagnose your problem. If it works well with the 10 rounder then the bolt is probably binding on the top of the mag, easy fixIf the 10 rounder doesn't work either then it is probably a straight bolt binding issue, also an easy fix
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Ya but If it wont stay on the rim of the shell it slips off and end up sideways in the chamber while the bolt smashes into it.


















































