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Posted: 7/5/2017 11:39:25 PM EDT
| Does anybody here have the protrusion measurement for the barrel indexing pin? I'm having issues with a new build. before I went to install the barrel I threaded the barrel nut on my upper just to make sure there was no obvious issues, well it threaded all the way on nice and smooth. I then went to install the barrel, when I went to install the barrel nut again it stopped after half a half turn or so. when I was looking it over the indexing pin looks like it's protruding halfway up into the first few threads. before I contact the Faxon I just want to make sure it's an issue with the barrel. |
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The barrel is a faxon?
Who makes your upper receiver? I'd like to think the upper is out of spec before the barrel pin being out of spec. I've had two uppers out of spec in my lifetime. One a daniel defense. the indexing pin was an eighth of an inch off center. And the other a aero precision. The threads were sort of lopsided where it made one side deeper than the other. |
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Quoted:
The barrel is a faxon? Who makes your upper receiver? I'd like to think the upper is out of spec before the barrel pin being out of spec. I've had two uppers out of spec in my lifetime. One a daniel defense. the indexing pin was an eighth of an inch off center. And the other a aero precision. The threads were sort of lopsided where it made one side deeper than the other. Quoted:
The barrel is a faxon? Who makes your upper receiver? I'd like to think the upper is out of spec before the barrel pin being out of spec. I've had two uppers out of spec in my lifetime. One a daniel defense. the indexing pin was an eighth of an inch off center. And the other a aero precision. The threads were sort of lopsided where it made one side deeper than the other. Quoted:
I can measure one for you in the morning. |
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Quoted:
The barrel is a faxon? Who makes your upper receiver? I'd like to think the upper is out of spec before the barrel pin being out of spec. I've had two uppers out of spec in my lifetime. One a daniel defense. the indexing pin was an eighth of an inch off center. And the other a aero precision. The threads were sort of lopsided where it made one side deeper than the other. Have you tried another barrel nut? Perhaps the major was cut incorrectly? |
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That is certainly unusual. The way we pin in the index pin is a hard gauge that only if the pin is below the flange can it move to the next manufacturing step. Have you tried another barrel nut? Perhaps the major was cut incorrectly? 
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Does this indexing pin not look too high to you, I measured it at .102'' high. http://i.imgur.com/x28T38x.jpg We're happy to bring it back and fix it. Contact our customer service e-mail and mention my name and a link to this thread. Mark will get it moving in a hurry! |
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Quoted:
Does anybody here have the protrusion measurement for the barrel indexing pin? I'm having issues with a new build. before I went to install the barrel I threaded the barrel nut on my upper just to make sure there was no obvious issues, well it threaded all the way on nice and smooth. I then went to install the barrel, when I went to install the barrel nut again it stopped after half a half turn or so. when I was looking it over the indexing pin looks like it's protruding halfway up into the first few threads. before I contact the Faxon I just want to make sure it's an issue with the barrel. Measured from the top of the barrel extension (not the flange), 0.094 inch maximum. |
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