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So, swapping forearms didn't help at all. I borrowed a push/pull gauge from work and it takes 8.5 lbs to rack it with only the carrier plate, no bolt or trigger, measures the same with bolt and trigger installed. That, to me rules out the ejector spring and hammer being cocked. I just noticed that there are no wear mars on the mag tube except in the top, right behind the dimples for 4" and then there are wear marks on the bottom right before the receiver. Bend mag tube?
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