User Panel
User Panel
User Panel
|
Posted: 7/19/2014 9:44:32 PM EDT
[#1]
Is the barrel being held near the flash hinder? Barrel shouldn't move. What torque are you using?
Look here: http://www.ar15.com/forums/t_3_4/226782_Assemble_your_own_LOWER__UPPER__FREE_FLOAT__TRIGGER__GAS_BLOCK___Step_by_step_instructions_.html |
|
|
|
Posted: 7/19/2014 9:47:35 PM EDT
[#2]
Whoa! If the barrel extension broke free of the barrel it needs to be sent back to the manufacture asap!
|
|
|
|
Posted: 7/19/2014 9:53:25 PM EDT
[#3]
Did the barrel unscrew from the extension or did you break the index pin?
Sounds like either way, it needs to go back to the manufacturer.
|
|
|
|
Posted: 7/19/2014 10:07:15 PM EDT
[#4]
How are you clamping the barrel?
Barrel blocks = good reaction rod or similar = probably ok Receiver blocks = NO GO DPMS receiver fixture = EMERGENCY STOP Quoted:
Did the barrel unscrew from the extension or did you break the index pin? And this. If it's the index pin, have to take it apart and assess the damage to the receiver. |
|
|
|
Posted: 7/19/2014 11:56:35 PM EDT
[#5]
When I installed the barrel I had it set at 30 but my delta ring was blocking the gas tube so I set it to 40. No problem there. Gas tube went on fine. Go to adjust my a2 flashider so the solid portion is on the bottom having the upper receiver in a vice block and overtightened. Went to correct and the barrel turned. (No torque was used to adjust flashider as set perfectly was "tight")
It's an 10.5" American spirit arms barrel |
|
|
|
Posted: 7/20/2014 12:12:57 AM EDT
[#6]
subscribed for results of barrel removal?
|
|
|
|
Posted: 7/20/2014 12:19:50 AM EDT
[#7]
Quote HistoryQuoted:
upper receiver in a vice block .... and now you know why you don't torque on muzzle devices with the receiver in the vise. Sheared the index pin, you'll have to remove the barrel to see how much damage there is to the receiver. |
|
|
|
Posted: 7/20/2014 11:27:33 AM EDT
[#8]
This is the aftermath. I see that the index pin is slightly into one side of the slot but it's a tight fit to begin with. Maybe u guys can help me out
Apologies for the phone pic http://i1283.photobucket.com/albums/a542/JhBAR15/04C28EE2-0180-4F2D-95C7-E8F4DFC902C5_zpstblfoioo.jpg |
|
|
|
Posted: 7/20/2014 12:17:18 PM EDT
[#9]
Well that's better than having your upper booogered up. Try using an appropriate sized dowel to smack the extension out and send it back to the barrel manufacturer. Ask them to send you a new gas tube too.
|
|
|
|
Posted: 7/20/2014 12:25:12 PM EDT
[#10]
thinking about sending the upper along with everything else.. have them install it due to my inconvenience lol. i have heard horror stories about their customer service so i doubt it
|
|
|
|
Posted: 7/20/2014 12:45:00 PM EDT
[#11]
Well, you were right the barrel unscrewed from the barrel extension.
If you'd have used a reaction rod it would have come apart the same way. If you'd used barrel blocks, you would have not known that it was put together with inadequate torque and quite possibly would have had it come loose at some random time in the future. Who is the manufacturer? Barrel extension is supposed to be installed to 150 ft/lbs, and should never be removed after installation. The chances of that one going back together and getting it torqued adequately while getting top dead center and headspace simultaneously correct are pretty slim. A 1" dowel rod will fit through the upper and can use that to tap the extension out of the upper receiver. Looks like the upper is fine. |
|
|
|
Posted: 7/20/2014 1:15:00 PM EDT
[#12]
That should not be possible with a correctly installed barrel extension, ergo your barrel extension was either not properly torqued by the manufacturer, or some other process (nitriding, maybe?) caused the barrel to barrel extension torque to relax.
Barrel to barrel extension timing and torquing is not something you can just "redo" - it'll have to go back to the manufacturer, and if it's a new barrel assembly, this should be a simple warranty replacement case. |
|
|
|
Posted: 7/20/2014 1:17:12 PM EDT
[#13]
Supposedly, the index pin is also supposed to go into the barrel's threads and retain the extension. I'd be interested in pictures of the chamber end of that barrel to see if it was built that way... I believe the torque spec for barrel extensions is something like 140-150 ft/lb. OP, how hard did you have to turn to get that barrel to turn out of the barrel extension? In for "who made that barrel".
ALWAYS secure the barrel as close as possible to whatever work you're doing. Muzzle devices need support as close as possible to the muzzle - usually this is only to make sure your effort goes into the muzzle device and not into turning the whole barrel. I've had to use a clamshell fixture a few times to install barrels because M4-contour barrels are too tapered for my barrel vise blocks to hold reliably, but almost all barrels are pretty much cylindrical near the muzzle. |
|
|
|
Posted: 7/20/2014 1:55:29 PM EDT
[#14]
I can't tell from the pic, did the index pin shear off at the barrel? The index pin should have been drilled into both. Best bet is to return it to the manufacturer. A good one should replace it, assuming the pin is not broken. I have broken 1 pin in 10 years, I ended up drilling it out and replacing it.
|
|
|
|
Posted: 7/20/2014 2:18:56 PM EDT
[#15]
K so it looks like my gas tube hole is a little marred on the left side where the tube went into the upper. Should I shave the right side down to accommodate the larger gas tube for the SBR set up?
http://i1283.photobucket.com/albums/a542/JhBAR15/977196C9-5D66-4BFF-B35E-BA8BE39D9661_zpsjhststem.jpg Or am I ok with a normal size tube The barrel ext came out with one tap on a dowel so the extension IMO was not secured correctly http://i1283.photobucket.com/albums/a542/JhBAR15/C282E0FB-EF6C-4012-A9FB-B6B73E1F90EB_zpsujdxf2yd.jpg |
|
|
|
Posted: 7/20/2014 4:27:52 PM EDT
[#16]
Quote HistoryQuoted:
The barrel ext came out with one tap on a dowel so the extension IMO was not secured correctly What GHPorter was referring to is that the index pin is supposed to go all the way through the barrel extension and down into the threaded portion of the barrel. Along with the torqueing, that pin is supposed to secure the barrel from backing out of the threads on the barrel extension. The barrel extension was properly installed into the upper, as it is only supposed to be retained by the barrel nut, and the index pin just helps align it. |
|
|
|
Posted: 7/20/2014 4:37:36 PM EDT
[#17]
Index pins generally do NOT extend into the threads on the barrel itself. First, there's no need to, and second, that part of the chamber is relatively thin as-is, and drilling into it at that location would not be advisable. The only purpose for the index pin is to keep the barrel/barrel extension from rotating in the upper.
Considering the exterior threads on the barrel and the interior threads on the barrel extension are black, the barrel was not nitrided after assembly which has become the arfcom scapegoat of choice. Both were apparently finished (by whatever process) prior to assembly which brings about a whole 'nother set of potential issues of which the OP's experience is one. |
|
|
|
Posted: 7/20/2014 4:45:17 PM EDT
[#18]
Quote HistoryQuoted:
Considering the exterior threads on the barrel and the interior threads on the barrel extension are black, the barrel was not nitrided after assembly which has become the arfcom scapegoat of choice. Both were apparently finished (by whatever process) prior to assembly which brings about a whole 'nother set of potential issues of which the OP's experience is one. I don't know about that... The interior threads of the barrel extension appear unfinished to my eyes. |
|
|
|
Posted: 7/20/2014 5:10:14 PM EDT
[#19]
Yeah I've contacted the manufacturer so we'll see what they have to say about replacing//fixing the situation
|
|
|
|
Posted: 7/20/2014 5:34:54 PM EDT
[#20]
Quote HistoryQuoted:
Yeah I've contacted the manufacturer so we'll see what they have to say about replacing//fixing the situation Let us know of the out come. |
|
|
|
Posted: 7/20/2014 6:16:25 PM EDT
[#21]
Quote HistoryQuoted:
It's an 10.5" American spirit arms barrel Someone over on TOS recently took a tour at ASA. > Link. |
|
|
|
Posted: 7/20/2014 8:09:08 PM EDT
[#22]
Yeah I've heard nightmares over the years of the customer service so I'm glad u posted that tour to confirm its a different owner now. Over all quality is excellent (so I've been told) so let's put the "new customer service" to the test
|
|
|
|
Posted: 7/20/2014 9:31:22 PM EDT
[#23]
Had a similar issue with a 11.5" barrel from American Spirits. Emailed them about and had a quick response. Sent the barrel back, they fixed and sent it back in a few weeks. Reinstalled and no issues so far, still need to shoot it and plan to do so tomorrow.
|
|
|
|
Posted: 7/21/2014 10:58:58 PM EDT
[#24]
Good news not a problem, send it back they'll repair/replace it. good to go
|
|
|
|
Posted: 7/22/2014 12:32:22 AM EDT
[#25]
I've wondered how the barrel and extension were put together. Now I know.
|
|
|
|
Posted: 7/22/2014 7:44:56 AM EDT
[#26]
Quote HistoryQuoted:
Had a similar issue with a 11.5" barrel from American Spirits. Emailed them about and had a quick response. Sent the barrel back, they fixed and sent it back in a few weeks. Reinstalled and no issues so far, still need to shoot it and plan to do so tomorrow. Shot 60 rounds through the barrel yesterday with no issues. |
|
|
|
Posted: 7/22/2014 11:43:00 AM EDT
[#27]
Quote HistoryQuoted:
I've wondered how the barrel and extension were put together. Now I know. There are some cross section views in this thread. http://www.ar15.com/forums/t_3_118/652143_KABOOM.html Neither is good but you really don't want your barrel extension to come apart the way it does in that thread. |
|
|
|
Posted: 7/22/2014 8:09:05 PM EDT
[#28]
Index pins are not drilled into the barrel. They only index/orient the receiver and gas port.
|
|
|
|
Posted: 7/22/2014 10:21:55 PM EDT
[#29]
Sent off my barrel today to Asa. They told me if I wanted to send the upper they'll put it on and test fire to make sure everything is good. Saves me the time.
|
|
|
|
Posted: 7/23/2014 12:42:17 PM EDT
[#30]
Quote HistoryNeither is good but you really don't want your barrel extension to come apart the way it does in that thread. In the thread you mentioned or in my thread? |
|
|
|
Posted: 7/23/2014 1:22:21 PM EDT
[#31]
Quote HistoryQuoted:
In the thread you mentioned or in my thread? Quote HistoryQuoted:
Neither is good but you really don't want your barrel extension to come apart the way it does in that thread. In the thread you mentioned or in my thread? The Kaboom thread I linked to, someone said they were interested to see how the barrel & barrel extension were put together. That Kaboom thread has a nice photo with a (literally) exploded view of the parts. |
|
|
|
Posted: 7/24/2014 2:35:19 PM EDT
[#32]
Quote HistoryQuoted:There are some cross section views in this thread.
http://www.ar15.com/forums/t_3_118/652143_KABOOM.html Neither is good but you really don't want your barrel extension to come apart the way it does in that thread. Holy smokes! |
|
|
|
Posted: 8/14/2014 8:55:13 AM EDT
[#33]
So I got my original ARFCom account restored! Got my barrel back from ASA yesterday and couldn't be happier. They installed the barrel to the upper with a complimentary gas tube and roll pin installed as well. All I need now is a bcg and charge handle and I'll be gtg!
|
|
|
|
Posted: 9/22/2014 12:54:10 AM EDT
[#34]
Quoted:
Hey guys. First time installing the barrel and I believe I over tightened the flash suppressor. Went to loosen it and the barrel started unscrewing from the barrel extension twisting my gas tube. I can't seem to break it free. Anyone have/had this issue? Thanks Jay This exact same thing happened to me once and it sucked! Basically, your barrel is ruined/defective. It cannot be fixed and was probably never right to begin with. I was lucky enough to get the manufacture to replace it and then I got rid of it as quickly as I could. Moral to the story is you get what you pay for (usually) and always clamp your barrel when working on the muzzle device. Good luck! |
|
|
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.
