Help with AR 15 iron sights?

I have a DPMS Oracle. The gas block is railed and not on the same plane as the upper rail. I bought a UTG front sight that is supposed to compensate for this and is designed for gasblocks lower than the upper rail, and a UTG carry handle. The front sight is fine, but i'm not crazy about the carry handle. The... show more I have a DPMS Oracle. The gas block is railed and not on the same plane as the upper rail. I bought a UTG front sight that is supposed to compensate for this and is designed for gasblocks lower than the upper rail, and a UTG carry handle. The front sight is fine, but i'm not crazy about the carry handle. The rear sight wiggles slightly. I sent my original handle back and got the same thing, so I think thats how all of these are. I've found it very annoying. My local range is only 25 yards long, so it doesn't matter enough to make a difference there, but I worry that at 100 yards and farther, I'd have trouble hitting anything. That being said, I'm looking at a Troy rear fixed sight. However, it says it will not work with gasblocks that are not on the same plane. However, I've already bought a front sight that compensates for my gasblock being lower. Will this sight work or not? I don't think you can adjust windage on it by the way, only elevation. Here are the links to my front sight and the Troy sight I'm speaking of.

http://www.cheaperthandirt.com/product/85881

http://www.cheaperthandirt.com/product/ARR-108
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