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Thread: Front sight sits too high?

  1. #11
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    Did you zero the front site post to that, or is that as low as it will go? My guess, if you zero'd to that position is that you did it incorrectly. Did you start with the base flush to the surrounding site base?

    In the event that is as far down as it will go, then it needs to be sent back.

    I would use a target designed to 50 yard zero'ing, so the grid is marked with 1/2 MOA grid, so your clicks will correspond, if that doesn't get you close, you are likely doing something wrong.

  2. #12
    Join Date
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    Is it possible that you have a F marked front sight base and a front sight post made for non F marked FSB?

  3. #13
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    Quote Originally Posted by Code7inoaktown View Post
    ...
    ...
    I zeroed the irons first, and then cranked the Eotech to match it.
    ==================================

    Where is your POI with the EOTech?

    .

  4. #14
    Join Date
    Oct 2010
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    Not to insult your intelligence, OP, but are you looking through the aperture in the rear sight?

    (Yes, I have seen people trying to align the top of the aperture with the front post rather than looking through it.)
    B.A.S. Mechanical Engineering Technology

  5. #15
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    Quote Originally Posted by Eric D. View Post
    Not to insult your intelligence, OP, but are you looking through the aperture in the rear sight?

    (Yes, I have seen people trying to align the top of the aperture with the front post rather than looking through it.)
    No insult. I don't think any newb should be offended by such question but I am using the aperture to center the front sight post.

    I am going to assume that I must have just ****ed this whole thing up from the beginning and start over from zero again. I will set the front sight post to flush with the base of the front sight post well, and adjust for elevation at 50 yards with some of the Lake City / Federal XM193 I have. I believe at 50 yards, that it should be point of aim should be point of impact with XM193 and that will give me a 200 meterish zero.

    And yes, that is the correct Troy BUIS I have. It came on the carbine from a very reputable supplier so I'm sure it's not a knock off.

    I'll try to break away to the range in the next couple of weeks to see if I haven't just been frakking this thing up myself.

    I did finally find something similar here but there was no solution posted...It sounds like it's most likely a newb problem? I did notice that the smaller aperture's point of impact changes from the large aperture too so we're both likely doing the same thing.

    https://www.m4carbine.net/showthread.php?t=81546
    Last edited by Code7inoaktown; 11-12-11 at 22:50.

  6. #16
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    [s]I think Troy makes both same plane and offset aperture models. Zero with the one you intend to use then confirm trajectories with both.[/s]

    Correction to my last; conflicting data, BCM's page says same plane and offset styles available but Troy's FAQ says all their BUIS are same plane.
    Last edited by Tweak; 11-13-11 at 02:19.

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