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[NOTE: If your rifle bottoms out at 8/3 then follow these instructions to get the sight to bottom out at 8/3 –2 clicks.
1. Flip the rear sight back to the unmarked aperture. This will reveal a hole in the top of the handle.
2. Rotate the sight wheel all the way down. Will probably be exactly at 8/3 (6/3). Don’t force it down.
3. Using a 1/16" Allen wrench loosen the screw (under the revealed hole) in the sight wheel 3 full turns. Leave the wrench in the screw.
4. Rotate the bottom half of the sight wheel two clicks clockwise. This will raise the sight body if you look at it while you’re turning it.
5. Tighten the Allen screw, remove the wrench, and confirm the sight bottoms out at 2 clicks BELOW 8/3. If not repeat the procedure until it’s right.[/QUOTE]
This is something I was aware of but had never seen a step by step method of adjusting. Excellent.
The BUIS I was referring to is a different sight than the one you have described for zeroing. You are describing the issued A-2 and M-4 sight. I am talking about the BUIS that is shown in a picture by another PS member in this thread.
Gene
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