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Posted: 10/9/2013 1:28:11 PM EDT
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Hey guys, I have an issue. My front sight is slightly higher then my rear and I don't know what do about it. I have the front and rear MBUS, the Magpul Moe hand guard, and Magpul rail. I was told sights have to be even or you will be way off shooting. The only option I could think of is to get a Gas block with a rail, but then I run into the problem that I cant fold the sight down because it will hit the handguard. Help please?
http://i1191.photobucket.com/albums/z464/Camreno/null_zps7b47a831.jpg |
| Did you build it yourself? You can just replace the gas block with a railed one. Will cost a little more but I would install a free float, railed handguard, and mount a front sight on it. Reasons, you are going to have to take it apart anyway and buy a new gas block. Instead of spending the money on a new gas block sell the MOE and you are close to a basic free float like a Yankee Hill. If you keep the current gas block that roll pin should be fully seated. |
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I love my MOE and I don't want to get rid of it. I replaced my quad rail with it and love it. I cant get a rail gas block because then the MBUS would not flip down. Which might be fine but not sure if it will be in the way of my eotech. You couldn't mount the MBUS on the gas block, it would be to hot and melt the plastic sight. |
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I love my MOE and I don't want to get rid of it. I replaced my quad rail with it and love it. I cant get a rail gas block because then the MBUS would not flip down. Which might be fine but not sure if it will be in the way of my eotech. just drop the back up sights and use the eotech |
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This would be the best and easiest solution. And they work well too. I have this very model on one of my builds. It's also available without the bayonet lug if that's a concern. |
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Does that gas block flip foward or back, if it flips forward will it be able to flip with my hand guard? Honestly, like others have said, if you have your heart set on that magpul MOE handguard setup, put a standard f-marked front sight post on it. Otherwise, put a free floated rail on it. Midwest Industries SS Gen 2 series is very light and small. I don't know the weight of the MOE handguard but I would bet the MI rail is almost if not as light. The configuration you have in your picture is just not viable. I had a similar set up with my first AR and I had a railed gas block with a riser on it for the front sight post but it ended up having somewhat of the opposite problem yours did (the front sight was too high). However I shot a lot of rounds through it and the front sight never melted so unless you are doing some serious shooting I don't think it will melt. If you want to keep the magpul front sight and the sights be the same height you are just going to have to leave the front sight up at all times. Here are a couple of pics of ARs I used to have with similar set ups: 
Here is your OTHER option (putting a free floated tube on it): 
I just figured I would show you some examples. I hope this helps you figure this out. |
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<a href="http://s1191.photobucket.com/user/Camreno/media/null_zps4d88e2c5.jpg.html" target="_blank">http://i1191.photobucket.com/albums/z464/Camreno/null_zps4d88e2c5.jpg</a> Why is that roll pin sticking out so far? |
| I'm pretty sure there is only 1 height for fixed. I have an Eotech 512 and you definitely notice it but I have no issue finding my target. If you think it will annoy you that much, get an Eotech that has a raised mount like EXPS 2-0 that uses lower 1/3 cowitness |
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Thats what im thinking of going with. Somebody above said there is two different ones, one is slightly higher then the other? Anyobdy run the A2 with an EOTECH, is it annoying that its in the way? Just make sure it is a legit F-marked front sight post, and no an EOTech should be fine on there. If you don't like absolute co-witness get an EOTech on a riser that brings it up to 1/3rd co-witness and you will be g2g. |
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Does that gas block flip foward or back, if it flips forward will it be able to flip with my hand guard? It flips backwards. But is no longer than the base. It should fit fine with the MOE handguards. If there's any interference it might be the sight ears rubbing the handguards, if so it should be slight and I'd trim the handguards. But I think it'll fit fine as is. Here's mine in the fold position; 
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Thats what im thinking of going with. Somebody above said there is two different ones, one is slightly higher then the other? Anyobdy run the A2 with an EOTECH, is it annoying that its in the way? Not annoying at all. The majority of .mil rifles have a fixed FSB and they work just fine with optics. For the love of god fix that setup of yours. |
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