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Help! Problem Sighting In AR in Dim Light

Discussion in 'Rifle Country' started by King, Dec 31, 2002.

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  1. King

    King Member

    Joined:
    Dec 24, 2002
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    Location:
    Austin Texas........
    Hey all...could use a little advice. I took my Bushmaster AR 15 (XM15) to the indoor range for the first time yesterday. Santa just brought it to me ( :D ).

    Here's the problem. At ranges of 50 to 100 yards in relative "dim" indoor lighting conditions, I was having a great deal of difficulty sighting it in (lining up the the front sight post through the smaller aperature rear sight). I just can't see a good picture in poor light. I also occurs to me that this could be a problem if I ever needed to shoot at these ranges or greater outdoors and in dim light or possibly in the dark, etc. Looking forward, I would like to be use the open sights rather than scoping the carbine.

    Is it wise to mark the front post and the rear aperture sights in white or some type of orange dayglow? Are there other options?

    By the way, I could sight it in with the larger rear aperature sight but I could not draw an accurate bead on the target at this range.

    Appreciate your advice............:)
     
  2. stevie_d_64

    stevie_d_64 Member

    Joined:
    Dec 31, 2002
    Messages:
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    Location:
    Houston, Texas
    Go take a look on the Bushmaster website...

    They have some accessories in the sight post department which could help you out...

    BTW, what did you get???

    I've had my "Shorty, 14.5" barrel with the AK brake" for a couple of years now...Its the A3 version and has the removable handle so you can mount a variety of optics packages on the rails there...

    I broke down and wrapped around the cost of a EOTech 552 that works like a dream...

    Have fun...
     
  3. King

    King Member

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    218
    Location:
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    Stevie_d_64....It's the XM15 - M4 military style (A2). 16inch barrel including muzzle brake. Shoots like a dream.
     
  4. 11xray

    11xray Member

    Joined:
    Dec 26, 2002
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    Can you see the front sight?

    If so , that is all you need to see.

    Don't try to line up the sights using the rear aperture. Just look through the rear aperture at the front sight.

    Your eye will naturally try to center the front sight properly.

    Zero that weapon at 25 meters , and it will be good out to about 300.
     
  5. Nero Steptoe

    Nero Steptoe member

    Joined:
    Dec 30, 2002
    Messages:
    461
    I rarely use iron sights when shooting my Bushmaster, but I believe your manual gives you detailed sight-in instructions. My recollection is that it's supposed to be sighted in at 25 meters, using the larger aperture.

    If you're having problems seeing the front sight, you can always get a Trijicon or Meprolight front sight.
     
  6. King

    King Member

    Joined:
    Dec 24, 2002
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    Location:
    Austin Texas........
    11xray...thanks....it may be a combination of the two but I find that it's hard to even see the front post in dim, shadowy light (inside the range). To the extent that the target isn't bright enough to provide a lot of contrast. I want the post to standout clearly in any reasonable lighting situation.

    In bright light it is no problem at all.
     
  7. King

    King Member

    Joined:
    Dec 24, 2002
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    Location:
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    Thanks Nero Steptoe...It's sighted in nicely for accuracy (per the manual). Let's just say that I can't draw an accuate bead on the target in dim light. I was looking at the Trijicon front sight (post) a short while ago. That may be the solution....$45 ouch!
     
  8. cratz2

    cratz2 Member

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    Location:
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    Or for sighting in in poor light, take a bright flash light to illuminate the target. Shine the light right on the target from a few feet in front of the target. Contrast will take care of the rest.
     
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