 pug826 
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Joined: Jun 2012  USA
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Posted: 7/19/2012 10:08:15 PM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT P.S. - terribly sorry for my noobish questions, I am very new to the AR platform and I get nervous when I feel like I may have ruined my rifle :-S |
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jaqufrost
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Posted: 7/19/2012 10:15:06 PM
[Last Edit: 7/19/2012 10:15:37 PM by jaqufrost]
It is probably fine, especially if they dimpled the barrel.
You can probably check for movement by removing one screw and looking at the marks on the barrel. You should see a circular cut into the barell from the screw pressing into it, if the gas block was driven sideways you should see the mark in your barrel from the screw sliding sideways.
ETA: make sure you put loctite on the screw when you put it back in.
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Posted: 7/19/2012 10:24:37 PM
How can I tell if the barrel is dimpled?
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jaqufrost
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Posted: 7/19/2012 10:26:26 PM
Originally Posted By pug826: How can I tell if the barrel is dimpled? You can't without taking a screw out or asking the manufacturer. Normally the screw closest to the upper is dimpled . |
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Posted: 7/19/2012 10:34:00 PM
I guess mine isn't. The screws do not go up towards the barrel, they go in sideways, clamping the gas block on. The block looks pretty darn centered still, how much leeway can it have from side to side to still function flawlessly for a long time? And how easy is the problem to fix if it ever needs to be re centered?
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jaqufrost
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Posted: 7/19/2012 10:38:45 PM
Originally Posted By pug826: Sorry, I didn't realize you had a clamp on gas block. I would look down the top of the barrel and make sure it looks centered. Then check it from the back of the upper receiver and make sure it looks centered. I would remove the upper from the lower and pull out the bolt carrier group for these operations.
I guess mine isn't. The screws do not go up towards the barrel, they go in sideways, clamping the gas block on. The block looks pretty darn centered still, how much leeway can it have from side to side to still function flawlessly for a long time? And how easy is the problem to fix if it ever needs to be re centered? If it appears centered it should cycle fine. |
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Posted: 7/19/2012 11:07:46 PM
It looks centered to me. Except when I stood it up to look down it, i turned away for a second and the rifle fell over and the free floated barrel knocked against my cupboard pretty hard. I feel so dumb I hope I didn't damage it :-(
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jaqufrost
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Posted: 7/19/2012 11:08:40 PM
I wouldn't worry about it. A little bump like that shouldn't do anything besides scratch it.
Originally Posted By pug826: It looks centered to me. Except when I stood it up to look down it, i turned away for a second and the rifle fell over and the free floated barrel knocked against my cupboard pretty hard. I feel so dumb I hope I didn't damage it :-( |
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Posted: 7/19/2012 11:12:52 PM
I hope. It fell quite a distance and the muzzle hit pretty hard, and when I went to catch it to prevent it from falling any further, I kinda pushed it against the cupboard even more! I tend to worry a lot but I'm just scared Because I paid a lot for it. I don't want to bend the barrel out of the receiver
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Posted: 7/20/2012 2:24:51 PM
Well, I took her to the range today and blew through 40 more rounds with no problems, so I guess she is alright. Two small concerns (which I am sure are nothing), My gun is new, and has had less than 100 rounds through it, and when I was cleaning the bolt, I noticed very very small trace amounts of brass on the bolt, almost microscopic, and a small amount of that red primer glue. There were no brass shavings anywhere in the upper receiver, not a trace. That, and I noticed my gas tube seemed to be slightly larger at the end of it in the receiver, I never noticed it before and am wondering if that is normal? It still fits right in the bolt key and functions flawlessly so I assume it is alright. Sorry I am being so finicky with my rifle, I just love it to death.
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Posted: 7/20/2012 2:44:41 PM
both are normal.
brass gets all over the dang place some headstamps of cases more so than others. the end of your gas tube is belled to mate better with your gas key |
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jaqufrost
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Posted: 7/20/2012 7:36:42 PM
Everything sounds pretty normal.
If the tube wasn't belled out at the end you would lose to much gas and it most likely wouldn't cycle. |
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Posted: 7/20/2012 8:15:43 PM
Awesome. Thanks guys. I am glad it runs perfectly after i hit the barrel, but I guess these things are made durable enough to withstand drops and falls. And apparently I did not knock the gas block off anyway. I feel a lot better now
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