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Posted: 4/7/2014 1:39:15 PM EDT
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I have a Midwest Industries gen 2 T series 15' quad rail mounted on my AR-15, and although I'm fairly happy with it overall, I'm having a slight issue. After having the barrel nut torqued down the second time due to a minor issue, I've found that I am unable to mount my EOTech 512 where I had it before due to the handguard top rail being slightly left of the upper receiver rail. I am hesitant to have to take it back to the gun shop again(I am sadly unable to do such work at my home due to lack of correct tools and such), so my main question is, will this pretty minor misalignment be enough to impact the alignment of my iron sights, and if so, will it be in a way that can be overcome by the built-in sight adjustments? Thanks for any help.
Edit: I have mounted my EOTech in a different spot now, so that's not an issue. I just want to know if this will affect the alignment of my iron sights in a way that is unintended and cannot be overcome by normal sight adjustments. |
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Quoted:
I have a Midwest Industries gen 2 T series 15' quad rail mounted on my AR-15, and although I'm fairly happy with it overall, I'm having a slight issue. After having the barrel nut torqued down the second time due to a minor issue, I've found that I am unable to mount my EOTech 512 where I had it before due to the handguard top rail being slightly left of the upper receiver rail. I am hesitant to have to take it back to the gun shop again(I am sadly unable to do such work at my home due to lack of correct tools and such), so my main question is, will this pretty minor misalignment be enough to impact the alignment of my iron sights, and if so, will it be in a way that can be overcome by the built-in sight adjustments? Thanks for any help. Edit: I have mounted my EOTech in a different spot now, so that's not an issue. I just want to know if this will affect the alignment of my iron sights in a way that is unintended and cannot be overcome by normal sight adjustments. Yes, the misalignment will effect your ability to zero your irons. If the hand guard was installed by a gun shop, take it back and have them make it right. Since that model hand guard indexes to MI's proprietary barrel nut, the fact that it's misaligned to the receiver means that the installer did a poor job of getting the barrel nut exactly right. |
| If it's out of whack enough to not let your optic mount, your irons will be far off to one side if you can zero them at all, that's a pretty long distance between them and length enough for it to get out of control. If you don't have the tools to fix it I would assume someone else put it on for you, if you paid to have it done you should march back down there and have it put on properly on their dime this time. Good luck. |
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Quoted:
If it's out of whack enough to not let your optic mount, your irons will be far off to one side if you can zero them at all, that's a pretty long distance between them and length enough for it to get out of control. If you don't have the tools to fix it I would assume someone else put it on for you, if you paid to have it done you should march back down there and have it put on properly on their dime this time. Good luck. +1. They might give you grief about it but don't take no for an answer. This isn't a "close enough" situation and it isn't crying over spilled milk. |
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I had a bit of fuss with the MI-SS-Gen 2.
I installed my MI-SS Gen2 a couple weeks ago. At first I noticed the rail of the flat-top, and the rail of the Gen 2 did not want to line-up and match on all three sides of the rails. I took the whole works and set it rail-top down on my table saw, and clamped the upper down solid. I then took the Gen 2 rail and did the same, only with two clamps. I then took another longer clamp and clamped from charging handle exit to front of Gen 2 rail, while making sure the barrel was absolute center of the hand guard. It took some time to get it all lined up and clamped, but all said and done it was flat and true along the full length of the picatinney rail. I tightened the Allen Bolts to specification and I was good to go. Rock solid I agree with the others. If you paid a smith to install it, they need to do it right. The first time! |
| I am hesitant to take it back and have them work on it more though because the first time it was installed, it was also very slightly out of alignment, but my EOTech mounted just fine. But, now, the top rail of the hand guard is around half a millimeter, maybe less, left of the rail on my receiver, and for some reason my EOTech will not lay flat in its original position. I think the difference may be that now, the upper rail of the hand guard is also somewhere around a millimeter lower than the rail of the upper receiver, whereas I believe it was perfectly level the first time. Also, I was able to mount my EOTech using the exterior screw and a quarter in its original position, and it seemed fairly flat, although I don't think it was as flat as it should have been. So, please advise again with this new information. |
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Quoted:
I am hesitant to take it back and have them work on it more though because the first time it was installed, it was also very slightly out of alignment, but my EOTech mounted just fine. But, now, the top rail of the hand guard is around half a millimeter, maybe less, left of the rail on my receiver, and for some reason my EOTech will not lay flat in its original position. I think the difference may be that now, the upper rail of the hand guard is also somewhere around a millimeter lower than the rail of the upper receiver, whereas I believe it was perfectly level the first time. Also, I was able to mount my EOTech using the exterior screw and a quarter in its original position, and it seemed fairly flat, although I don't think it was as flat as it should have been. So, please advise again with this new information. Try posting that you need help on the "Hometown" forum for your state. Perhaps someone near you has the experience and willingness to help out. 
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| If I'm going to take it anywhere to have it worked on, I know where it will be. The reason for this thread is because I want to make sure I have an actual problem that is worth fixing, or if I'm just being too much of a perfectionist. This is my first AR and the first hand guard, other than the plastic one that comes with most rifles, that I've had on it, so I want to know how closely aligned you can actually expect this to be. |
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Quoted:
If I'm going to take it anywhere to have it worked on, I know where it will be. The reason for this thread is because I want to make sure I have an actual problem that is worth fixing, or if I'm just being too much of a perfectionist. This is my first AR and the first hand guard, other than the plastic one that comes with most rifles, that I've had on it, so I want to know how closely aligned you can actually expect this to be. The rail has to be aligned perfectly for your irons to zero and your optic to mount right, so you have every right to be a perfectionist on this.
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