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I've sent an email to the Product Team for them to check the barrels out. I referenced this thread and the other one you were participating in.
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Your posts may be used for quality and training purposes...
How do I get the job at brownells who gets to just browse arf and look for threads to post in? --Proto3 Spoiler Alert: This is a volunteer position. |
Awesome, thank you! If you guys don't find anything wrong with them and can barrel them up and they're more-or-less centered and perfect, then please let me know what the hell I'm doing wrong Like I said I don't think it's me doing something incorrect, but there's always a chance it's a me problem
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"Oh, bother," said Pooh, as he pulled the pin on another grenade...
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My 20” retro barrel was F*cked like this except it would not zero all the way left. I had to take it to ADCO And they fixed it overnight for $50 bucks.
Shame on Brownell’s. I do not respect your QC process. $200+ for a barrel and I had to have a second gunsmith fix it. |
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I've been battling some internal demons this week, so far I'm 0 for 6.
كافر. |
Originally Posted By weptek911: My 20” retro barrel was F*cked like this except it would not zero all the way left. I had to take it to ADCO And they fixed it overnight for $50 bucks. Shame on Brownell’s. I do not respect your QC process. $200+ for a barrel and I had to have a second gunsmith fix it. View Quote How did they fix it again? (forgive me, if you mentioned it in the other thread that I can't find, I can't remember it ) I mean the front sight block appears to be in line and not canted or anything? Certainly nothing obvious. I guess it's also worth mentioning that this is specifically the 1/7" barrel. I'd like to build around that because I'd like to shoot modern (62+gr) rounds in it. If the 1/12" barrels don't have this issue...I mean, I can live with keeping a stockpile of 55gr around just for that...but I'm now kind of hesitant to buy one of those just for it to have the same issue.. |
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"Oh, bother," said Pooh, as he pulled the pin on another grenade...
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I've got the Product Team involved with this, so they'll be looking into it. I'll share any information I receive.
Don't be afraid to use our "Guaranteed. Forever." return policy if it's not up to snuff! Guaranteed. Forever. |
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Your posts may be used for quality and training purposes...
How do I get the job at brownells who gets to just browse arf and look for threads to post in? --Proto3 Spoiler Alert: This is a volunteer position. |
Wow, kind of amazing honestly! I didn't really think the issue was going to be so consistent that you'd run into it again with the new barrel. In to hear any details about what the cause might be.
This seems to have been going on with these barrels since the beginning of the Retro line. |
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Tag.
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connoisseur of fine Soviet and European armored vehicles
Let's go Brandon CINCAFUGD |
Originally Posted By Brownells_ar15: I've sent an email to the Product Team for them to check the barrels out. I referenced this thread and the other one you were participating in. View Quote I don’t have time to explain why this will work just try it. Loosen the barrel nut. Allow the barrel to twist right in the direction of tightening as much as possible… most upper receivers have a slight amount of play between the barrel extension stud and receiver. Most have issues with the sights being more right not left. Best of luck |
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Originally Posted By shootsenmeister: I don’t have time to explain why this will work just try it. Loosen the barrel nut. Allow the barrel to twist right in the direction of tightening as much as possible… most upper receivers have a slight amount of play between the barrel extension stud and receiver. Most have issues with the sights being more right not left. Best of luck View Quote Basically it's a problem with the assembly, not the actual components? |
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connoisseur of fine Soviet and European armored vehicles
Let's go Brandon CINCAFUGD |
The upper receiver face is likely not square. Having it trued, or doing it yourself, may fix the problem.
I purchased a retro AR-15 from Brownells and I had to machine the front sight post hole deeper to get enough elevation to obtain a zero. IDK if my upper receiver face wasn't square, which may have caused the same problem you have, just in a different direction. |
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Originally Posted By shootsenmeister: I don’t have time to explain why this will work just try it. Loosen the barrel nut. Allow the barrel to twist right in the direction of tightening as much as possible… most upper receivers have a slight amount of play between the barrel extension stud and receiver. Most have issues with the sights being more right not left. Best of luck View Quote View All Quotes View All Quotes Originally Posted By shootsenmeister: Originally Posted By Brownells_ar15: I've sent an email to the Product Team for them to check the barrels out. I referenced this thread and the other one you were participating in. I don’t have time to explain why this will work just try it. Loosen the barrel nut. Allow the barrel to twist right in the direction of tightening as much as possible… most upper receivers have a slight amount of play between the barrel extension stud and receiver. Most have issues with the sights being more right not left. Best of luck ...Did you actually read my post? I'm guessing not and just decided to chime in? |
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"Oh, bother," said Pooh, as he pulled the pin on another grenade...
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Originally Posted By borderpatrol: The upper receiver face is likely not square. Having it trued, or doing it yourself, may fix the problem. I purchased a retro AR-15 from Brownells and I had to machine the front sight post hole deeper to get enough elevation to obtain a zero. IDK if my upper receiver face wasn't square, which may have caused the same problem you have, just in a different direction. View Quote Same as previous - did you actually read my post? If you just skimmed it, re-read it again...2 barrels, 2 uppers, one of which had another barrel on it at one point and the other barrel zeroed just fine. Massive AND windage elevations. Seriously, I swear, people here stopped reading things and decided they just need to chime in for post counts |
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"Oh, bother," said Pooh, as he pulled the pin on another grenade...
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Originally Posted By Evil_Ed: Same as previous - did you actually read my post? If you just skimmed it, re-read it again...2 barrels, 2 uppers, one of which had another barrel on it at one point and the other barrel zeroed just fine. Massive AND windage elevations. Seriously, I swear, people here stopped reading things and decided they just need to chime in for post counts View Quote View All Quotes View All Quotes Originally Posted By Evil_Ed: Originally Posted By borderpatrol: The upper receiver face is likely not square. Having it trued, or doing it yourself, may fix the problem. I purchased a retro AR-15 from Brownells and I had to machine the front sight post hole deeper to get enough elevation to obtain a zero. IDK if my upper receiver face wasn't square, which may have caused the same problem you have, just in a different direction. Same as previous - did you actually read my post? If you just skimmed it, re-read it again...2 barrels, 2 uppers, one of which had another barrel on it at one point and the other barrel zeroed just fine. Massive AND windage elevations. Seriously, I swear, people here stopped reading things and decided they just need to chime in for post counts The FSB issue can be confirmed with a measurement but a “F” post is a pretty good guess. I don’t know anything about production lines but it seems a batch could have been run at “F” spec, never got stamped, and then were assumed to be standard. If that’s the case, the windage issue is unrelated to the elevation issue. Could be bent barrel, bad index, over torque, or canted FSB. I wouldn’t dismiss his theory right away though. The two issues could be unrelated. The elevation thing is just out of spec regardless. Way off. ETA: Bent barrel is one thing that would cause both, but seems least likely. But I think I once saw a video of FN production line and the guy was whacking a barrel with a mallet for some reason. |
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@Brownells
Who is the mfgr on these barrels currently? |
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Can't never could 'til try came along.
"All welchers should be removed from the EE".-Aimless R.I.P. to the EE |
The voices in my head say I’m just being paranoid
KY, USA
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I have three of their retro barrels, two of which are in my parts box unbuilt as of yet.
I just checked them, one appears to be perfect and the other looks like it’s canted left. |
If you aren't representing Jesus in a way that makes people want to hang out with you, you're doing it wrong.
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Same situation here. I tried correcting by filing the indexing pin because I'd already had JT perm attach the muzzle device to 16". They wanted me to remove it and asked why there was a crush washer when it was their own XM177 hider/grenade ring. I got disgusted with it and its sitting in the corner.
The 20" I got right after that one while it was off for work is good to go. |
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