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Posted: 2/26/2006 6:26:08 AM EDT
I changed uppers and now it will not eject. It will pick the round up, chamber it but once it's fired I have to cycle the bolt manually. Then it picks up the next round and so on. Any ideas what might be causing this ?
Link Posted: 2/26/2006 11:35:45 AM EDT
Link Posted: 2/27/2006 6:15:16 AM EDT
It's a FSB and I'm using the same bolt as I was before. But I think I may have found the problem. For some reason the gas tube pin is missing. Now wouldn't that cause the gas to exit out of the gas tube pin hole instead of working the bolt back ?
Link Posted: 2/27/2006 10:40:44 PM EDT
Link Posted: 2/28/2006 2:40:37 PM EDT
I'll check on that. Thanks for the help.
Link Posted: 3/4/2006 8:27:23 AM EDT
Okay I checked the gas tube and FSB. Even hosed them down with gun scrubber and blew them out with air. Still doing the same damn thing. Any more suggestions ?
Link Posted: 3/4/2006 12:05:06 PM EDT
I'd say that installing a new roll pin will cure the problem. If it is missing, the gas tube can rotate in the FSB, or even move in or out. All of this can cause misalignment and gas loss.

You can try to find a new roll pin locally. It needs to be 0.312" (5/16") in length with a diameter of 0.081". As a test, you might use a small nail to temporarily pin it in place to see if the rifle will function correctly.
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