User Panel
User Panel
User Panel
|
Posted: 8/1/2015 7:00:02 AM EDT
[#1]
If just a broken index pin, it can be fixed. If the extension is loose, it's a paper weight.
|
|
|
|
Posted: 8/1/2015 2:08:48 PM EDT
[#2]
Quoted:
I recently purchased an upper off of EE. After shooting 15 rounds I noticed ,as I was cleaning it , I could rotate the barrel in the reciever. The barrel is not tight in the extension. It's a DPMS upper. Will DPMS repair this. Or was I the unfortunate recipient of a very large paper weight. Depends what you mean by rotate ? Like side to side wiggle or a full rotation ? If the first it may just be a loose barrel nut. If the latter sheared index pin or loose extension. |
|
|
|
Posted: 8/1/2015 3:08:31 PM EDT
[#3]
I took FSB off today. You can completely unscrew barrel with barrel extension still in the reciever . Bought this off EE a few weeks ago. i figured anything would be better than a some of these weekend special uppers. Boy ! was I wrong.
|
|
|
|
Posted: 8/1/2015 3:24:18 PM EDT
[#4]
I found the FS thread where you bought it but the pictures are gone. Did it come with the FSB or did you instal the one you bought recently? If you installed the FSB on this barrel, how did you remove the muzzle device?
If the upper is exactly how you bought it, try contacting the seller. |
|
|
|
Posted: 8/1/2015 3:44:48 PM EDT
[#5]
Quote HistoryQuoted:
I took FSB off today. You can completely unscrew barrel with barrel extension still in the reciever . You have a paperweight. Well, you could use it with a .22lr kit I guess. |
|
|
|
Posted: 8/1/2015 4:16:04 PM EDT
[#6]
Quote HistoryQuoted:
I found the FS thread where you bought it but the pictures are gone. Did it come with the FSB or did you instal the one you bought recently? If you installed the FSB on this barrel, how did you remove the muzzle device? If the upper is exactly how you bought it, try contacting the seller. FSB I purchased was for another barrel . I had done nothing but shoot rifle 15 times. And cleaned it. Contacted seller . He said it was fine when he had it. I'm not going to argue , life is too short. Who knows he may not have known. i guess I'll just find a barrel. |
|
|
|
Posted: 8/1/2015 6:57:19 PM EDT
[#7]
Just asking, but why can't OP remove barrel and extension, apply some kind of thread sealant...........and retorque etension? Realizing that with the index pin @ 12 o'clock the gas tube/port also needs to be at 12. Why does the fact that the barrel came loose from the ext. mean that it's now junk? Never had one do that, but I have threaded barrels and installed extensions, etc.
|
|
|
|
Posted: 8/2/2015 5:21:30 AM EDT
[#8]
Because your chance of getting headspace, torque and TDC all correct simultaneously are pretty slim.
|
|
|
|
Posted: 8/2/2015 8:26:11 AM EDT
[#9]
Since ADCO chimed in, send it to them, you won't be disappointed! They can do any other mods you would like while its there. My experiences is that that they have it back to you in record time
|
|
|
|
Posted: 8/2/2015 8:35:41 AM EDT
[#10]
Quote HistoryQuoted:
Since ADCO chimed in, send it to them, you won't be disappointed! They can do any other mods you would like while its there. My experiences is that that they have it back to you in record time ADCO says it's a paper weight. |
|
|
|
Posted: 8/2/2015 8:54:41 AM EDT
[#11]
Quote HistoryQuoted:
FSB I purchased was for another barrel . I had done nothing but shoot rifle 15 times. And cleaned it. Contacted seller . He said it was fine when he had it. I'm not going to argue , life is too short. Who knows he may not have known. i guess I'll just find a barrel. Quote HistoryQuoted:
Quoted:
I found the FS thread where you bought it but the pictures are gone. Did it come with the FSB or did you instal the one you bought recently? If you installed the FSB on this barrel, how did you remove the muzzle device? If the upper is exactly how you bought it, try contacting the seller. FSB I purchased was for another barrel . I had done nothing but shoot rifle 15 times. And cleaned it. Contacted seller . He said it was fine when he had it. I'm not going to argue , life is too short. Who knows he may not have known. i guess I'll just find a barrel. I received an email from JoeBob's yesterday about some barrels they had in stock. Its a starting point but Shop around for the best price or the barrel you want and Good Luck |
|
|
|
Posted: 8/2/2015 9:07:16 AM EDT
[#12]
Quote HistoryQuoted:
ADCO says it's a paper weight. Quote HistoryQuoted:
Quoted:
Since ADCO chimed in, send it to them, you won't be disappointed! They can do any other mods you would like while its there. My experiences is that that they have it back to you in record time ADCO says it's a paper weight. Not what ADCO said. if it is the index pin, they said it can be fixed. That should be explored before concluding it is a paperweight. Why not send it in and let them try? Or, at least let a gunsmith check it. |
|
|
|
Posted: 8/2/2015 9:34:57 AM EDT
[#13]
Quote HistoryQuoted:
Not what ADCO said. if it is the index pin, they said it can be fixed. That should be explored before concluding it is a paperweight. Why not send it in and let them try? Or, at least let a gunsmith check it. Quote HistoryQuoted:
Quoted:
Quoted:
Since ADCO chimed in, send it to them, you won't be disappointed! They can do any other mods you would like while its there. My experiences is that that they have it back to you in record time ADCO says it's a paper weight. Not what ADCO said. if it is the index pin, they said it can be fixed. That should be explored before concluding it is a paperweight. Why not send it in and let them try? Or, at least let a gunsmith check it. With the FSB removed I was able to remove barrel from barrel extension by hand. I'm a machinist and see no way to repair my upper except to backseat the barrel and ream. By the time I do this or pay someone to do this I'm out the cost of ,at least a barrel. when I tighten the barrel as much as I can by hand the front sight is about 1 degree beyond top center. It's not the index pin. But had I sold this I would have been more than willing to reconcile the situation. But as I said before you live and learn. |
|
|
|
Posted: 8/2/2015 9:37:55 AM EDT
[#14]
Barrels are cheap, replace it and go on
|
|
|
|
Posted: 8/2/2015 9:42:09 AM EDT
[#15]
Quote HistoryQuoted:
Barrels are cheap, replace it and go on My original question was would DPMS repair this. This as most post go from information hwy to opinionated pig trail real fast. |
|
|
|
Posted: 8/2/2015 9:58:11 AM EDT
[#16]
Call DPMS and see what they say.
I bought a barrel recently and had the same thing - the extension popped loose when I used a reaction rod to take the flash hider off. It had about 20 lbs of torque applied and the extension just went pop. I sent it back to the manufacturer. I believe there are a lot of barrels on the market that are getting melonited after the extension is applied, but the heat treatment of meloniting is causing the torque value to change between the extension and barrel as stress is relieved from heating. When I buy barrels now, I will only buy them from reputable manufacturers, or when the extension is obviously not melonited. Way too much cheap stuff out there of unknown quality. |
|
|
|
Posted: 8/2/2015 9:58:19 AM EDT
[#17]
That happened to me with an upper from Rguns once...barrel went to the scrap pile...
|
|
|
|
Posted: 8/2/2015 9:59:06 AM EDT
[#18]
Quote HistoryQuoted:
If just a broken index pin, it can be fixed. If the extension is loose, it's a paper weight. Some guy on TOS proved that wrong. He re-torqued the barrel extension after cutting the barrel down and re-doing the chamber and re-aligning and...in short, it was MASTERFUL, but he did it just for the hell of it because he was bored, and the labor cost would be staggering to farm out. Still, I found it very educational to see all the pictures of it and how he did it. HE was not a shade-tree mechanic, as it were. |
|
|
|
Posted: 8/2/2015 11:46:07 AM EDT
[#19]
Quote HistoryQuoted:
Some guy on TOS proved that wrong. He re-torqued the barrel extension after cutting the barrel down and re-doing the chamber and re-aligning and...in short, it was MASTERFUL, but he did it just for the hell of it because he was bored, and the labor cost would be staggering to farm out. Still, I found it very educational to see all the pictures of it and how he did it. HE was not a shade-tree mechanic, as it were. Quote HistoryQuoted:
Quoted:
If just a broken index pin, it can be fixed. If the extension is loose, it's a paper weight. Some guy on TOS proved that wrong. He re-torqued the barrel extension after cutting the barrel down and re-doing the chamber and re-aligning and...in short, it was MASTERFUL, but he did it just for the hell of it because he was bored, and the labor cost would be staggering to farm out. Still, I found it very educational to see all the pictures of it and how he did it. HE was not a shade-tree mechanic, as it were. I'm pretty sure that's what he meant by it's a paper weight it isn't economically sound decision to fix it. |
|
|
|
Posted: 8/2/2015 1:38:27 PM EDT
[#20]
There was a guy (since passed away) who offered this service. He would cut down the old barrel, install the new extension, then drill a new gas hole. It was mostly done on 20" barrels as I remember. There weren't nearly as many barrel options as there are now.
If it were me, I'd sell the old barrel on the EE and buy something else. I sold a GI Colt M4 barrel like this one time, after spelling out clearly in the ad that it did not have a barrel extension. |
|
|
|
Posted: 8/2/2015 1:46:25 PM EDT
[#21]
If you pull the barrel nut is there any damage to the index pin slot in the upper?
If it's gouged on one side then someone tried to unscrew a flash hider using an upper clam shell. At worst the upper threads could be damaged, then the whole upper receiver might be bad. |
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
