jrs,
Try Doc Lantin...I hear that he also does work on the short barreled ARs. I have no personal experience with his work though. My kitty kat had the same type of jams...double feeding - the bolt would try to chamber the next round before the ejecting the first. I agree with 4v50 gary that the gas port needs to be enlarged. Another thing that I don't want to carry it is because of the muzzle blast!!!
I am working out of the country right now (central asia) but am able to get back home every 4 months.
I will contact you through your e-mail.
Hope you get your weapon fixed.
Leo
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