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Posted: 10/17/2001 4:35:25 PM EDT
I just received my 24" bull barreled flat top upper receiver from model ! Sales and I am having a problem with a failure to feed from the "last bolt hold open" posistion. Does anyone have any ideas? It doesn't matter the name or size of the mag, either.Thanks.
Link Posted: 10/20/2001 4:15:22 PM EDT
[#1]
Quoted:
I just received my 24" bull barreled flat top upper receiver from model ! Sales and I am having a problem with a failure to feed from the "last bolt hold open" posistion. Does anyone have any ideas? It doesn't matter the name or size of the mag, either.Thanks.
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Can you get a "go" gauge to check for sufficient headspace?

Are you talking about when you've put in a fresh mag?

With the charging handle forward?

How far does it get?

Properly lubed?

Does the buffer spring spec out OK?

Did the bolt & carrier come with the upper?

Does it happen every time for this condition?

Does the upper close to the lower nice and tight?

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