I have an AR zero/sight problem. Looking for the best solution.
I don't want an easy, simple, quick, etc fix. I want the best fix to solve the following problem:
When I built these guns, I used, obviously, flat-top AR receivers. I purchased lightweight barrel kits from M1S and they came with everything needed. However, I did have to separately purchase the front sight posts.
At some point, I know I probably should have done this myself but I gave an SO buddy of mine one of my ARs to take to the SO range to sight in. He brought it back to me and said he was able to sight it in at 50M but, in order to do so, he had to back the front sight post nearly all the way out. Currently the FSP is far enough up that the top of it is slightly past the ears.
The rear sight is a LaRue.
Here is a picture of (one of the) uppers in question. Both are identical.
http://upload.spankdu.com/images/bvt...ghogihcm4s.jpg