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[ARCHIVED THREAD] - WTF Diamondhead?? (Page 1 of 2)
Posted: 7/10/2013 4:09:05 PM EDT
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So I ordered a FF rail from Diamondhead...the VRS-T in 13.5 in...I went to install it today and the grooves in the provided barrel nut do not line up with the the holes for the allen screws! In order for them to line up, the nut can't even be hand tight...just loosely on the threads. Any suggestions? The only thing I can think of is a shim or something on the barrel....
http://i70.photobucket.com/albums/i104/toddownz/IMG_20130710_194239_zps923037ed.jpg http://i70.photobucket.com/albums/i104/toddownz/IMG_20130710_194254_zps4f8fc69d.jpg |
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So I ordered a FF rail from Diamondhead...the VRS-T in 13.5 in...I went to install it today and the grooves in the provided barrel nut do not line up with the the holes for the allen screws! In order for them to line up, the nut can't even be hand tight...just loosely on the threads. Any suggestions? The only thing I can think of is a shim or something on the barrel.... <a href="http://s70.photobucket.com/user/toddownz/media/IMG_20130710_194239_zps923037ed.jpg.html" target="_blank">http://i70.photobucket.com/albums/i104/toddownz/IMG_20130710_194239_zps923037ed.jpg</a> <a href="http://s70.photobucket.com/user/toddownz/media/IMG_20130710_194254_zps4f8fc69d.jpg.html" target="_blank">http://i70.photobucket.com/albums/i104/toddownz/IMG_20130710_194254_zps4f8fc69d.jpg</a> On mine I just tightened down the nut, ran my gas tube, attached the gas block, slid on the handguard and tightened the screws... Is your barrel slid all the way into the receiver? |
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On mine I just tightened down the nut, ran my gas tube, attached the gas block, slid on the handguard and tightened the screws... Is your barrel slid all the way into the receiver? Sure is...all the reviews I've seen on the VRS was just like yours...easy peazy to install. When the nut's tightened down, the grooves do not line up with the holes in the rail so you cannot insert the allen screws :( |
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See the little tab the red arrow is point to? file it off. There is one on the other side too. <a href="http://s14.photobucket.com/user/000oo/media/IMG_20130710_194254_zps4f8fc69d.jpg.html" target="_blank">http://i14.photobucket.com/albums/a343/000oo/IMG_20130710_194254_zps4f8fc69d.jpg</a> Those tabs go around the upper...I'm assuming they're for anti-rotation. So filing them wouldn't help what about filing the rail in-between those tabs? That would allow the rail to move some which could line up the holes |
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It fits really well against the upper receiver...
This picture is deceiving cause the barrel nut isn't even hand tight...that's why the allen screws fit http://i70.photobucket.com/albums/i104/toddownz/IMG_20130710_203420_zps004a1f2c.jpg |
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The barrel nut is shiny as hell.....there has been some serious torque or the worst tool in the history of AR tools used to tighten it. phone on my camera makes it look worse than what it is...I did take the nut on and off multiple times but this wouldn't explain why the grooves don't line up |
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This is hard to see but you can see the grooves on the nut aren't lined up with the holes in the rail. The nut is just hand tight and it's already too far for them to line up
http://i70.photobucket.com/albums/i104/toddownz/IMG_20130710_210519_zps1e0ea158.jpg |
| I mean the box didn't even come with instructions, I just used the good old aeroshell grease on nut, and gave it a 1/4 to 1/2 turn on the nut and I can take the rail on and off all day long and it lines up perfectly and I Have a 13.5" on my Vltor Mur 1 5.56 build and everything is gravy. |
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Okay first thing I am wondering why are you screwing the socket head cap screws in from the backside when they go in from the opposite? What are you talking about? The pic I have shows the side with NO threads I know I am OCD, that is why I edited my post...it looked confusing from my standpoint. I mean can you strip it all down and take a picture of the barrel matting up with the receiver so we can take it apart piece by piece. |
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1. Picture of barrel matting up to receiver.
2. Barrel Nut hand tightened to the barrel/receiver. 3. Give it just a 1/4 to 1/2 turn with wrench. 4. Reposition the rail and try to install. If I could see those 4 pictures it might shine some light it seems like something is just off, and its might be minor. |
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Okay first thing I am wondering why are you screwing the socket head cap screws in from the backside when they go in from the opposite? What are you talking about? The pic I have shows the side with NO threads I know I am OCD, that is why I edited my post...it looked confusing from my standpoint. I mean can you strip it all down and take a picture of the barrel matting up with the receiver so we can take it apart piece by piece. Alrighty, lemme grab a pic before I gotta go into work |
| Ah I think I see the problem, what kind of lower is that.....look at my lower and look at the front take down pin it is set further back than the takedown holes on the upper receiver, if you look at yours.It is the opposite.....the takedown pin is ahead of the takedown holes on the upper receiver, probably causing cant and pushing the rail forward so that the socket head cap screws don't lien up. |
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Okay first thing I am wondering why are you screwing the socket head cap screws in from the backside when they go in from the opposite? What are you talking about? The pic I have shows the side with NO threads take some measurements with your digital calipers and see how far off the grooves for the holes in the handguard are from the barrel nut then you will have an idea of whether or not you have defective parts |
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Maybe that small amount of space I have is allowing it to matte up correctly, this also works on a Gen 2 Chainsaw with Vltor Mur 1. Just trying to break this down, because my OCD has kicked into overdrive.
*edit* It could be due to the takedown holes in the upper too...obviously their is a slight variation, and that is the only thing from pictures I can see without having the parts in front of us. |
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It's an SOG lower...here's a better pic of the area you're talking about
http://i70.photobucket.com/albums/i104/toddownz/IMG_20130710_213629_zps21dfdd6b.jpg |
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That explains it all.....look at the top of the barrel nut and the bottom of the barrel nut it is cross threaded. you can see the gap difference if you zoom in to like %400 in a photo studio. Naaaaa man...I put it on extremely slow and it went on smooth all the way until the end |
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That explains it all.....look at the top of the barrel nut and the bottom of the barrel nut it is cross threaded. you can see the gap difference if you zoom in to like %400 in a photo studio. Naaaaa man...I put it on extremely slow and it went on smooth all the way until the end look at my blown up picture you can see the gap. |
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That explains it all.....look at the top of the barrel nut and the bottom of the barrel nut it is cross threaded. you can see the gap difference if you zoom in to like %400 in a photo studio. Naaaaa man...I put it on extremely slow and it went on smooth all the way until the end look at my blown up picture you can see the gap. its the pic man...it's not cross-threaded. This is something I know for sure...it went on the whole way with just using my hand |
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That explains it all.....look at the top of the barrel nut and the bottom of the barrel nut it is cross threaded. you can see the gap difference if you zoom in to like %400 in a photo studio. Naaaaa man...I put it on extremely slow and it went on smooth all the way until the end look at my blown up picture you can see the gap. its the pic man...it's not cross-threaded. This is something I know for sure...it went on the whole way with just using my hand then maybe the threads on the upper were jacked up but I agree with shooter it looks crooked/cross threaded! ETA: what did you use to tighten it a pipe wrench nut looks crazy jacked up on the flats! |
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Guys, its the pic...the gap is perfect all the way around with the gun in my hands. The rail fits great against the receiver. If the threads were jacked up, there's no way the nut would go on that smoothly Okay, this is what had me wondering from beginning....the barrel nut was SHINY....look at mine its black....to me it looks like the barrel nut when on cross threaded and took some man power to get it off. I am not judging you, but by not considering mistake vs. fact it makes it look likes it on the company side failure, and obviously the picture shows a gap, the barrel nut is shiny from torque.....I dunno. I just put the info in to help....I am 100% sure I am right on this.....call me a Liar....the item has lifetime warranty, now the threads on your receiver that is different story.. Jumping to another thread....don't need to make any drama this late at night. |
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<a href="http://s70.photobucket.com/user/toddownz/media/IMG_20130710_221346_zps91c036fc.jpg.html" target="_blank">http://i70.photobucket.com/albums/i104/toddownz/IMG_20130710_221346_zps91c036fc.jpg</a> Use a set of feeler gauges is the gap at the top the same as at the bottom? |
| I mean it just looks like to me it went on just a slight cant with a offset in thread......I dunno I mean I can take mine on and off both rifles all day long and it works perfectly. Like I said not bashing your craftsmanship the fun is in learning, but it looks like cross thread still. |
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I do apologize if I'm coming off as rude, I'm just a little frustrated at this point...and now I have to go to work lol. But here's a pic of the threads (I didn't get all the grease off cause I'm in a hurry)
http://i70.photobucket.com/albums/i104/toddownz/IMG_20130710_223035_zps7c55db8a.jpg |
| Take a acid brush, or whatever small hard brush you can when you get home and just wipe and scrub out all of the old remaining grease, etc... from both threads. Then matte the barrel to receiver and just start the process over....like I said a little cant in the barrel could cause just that fraction of room you couldn't get. |
[ARCHIVED THREAD] - WTF Diamondhead?? (Page 1 of 2)
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