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Thread: 4x ACOG + KAC offset sights. BUIS too?

  1. #1
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    4x ACOG + KAC offset sights. BUIS too?

    Hi everyone,

    I've run into a conundrum with a set up I'm working on. I plan on using a 4x ACOG and, because it lacks adjustability (1x), a set of KAC offset sights for emergencies and close-in work (both already purchased). However, this is the first rifle I've ever run with offset sights, and I'm not fully familiar with what strategies people have found to work best with them.

    Do any of you also run a set of BUIS with combos like this, and if so, why did you choose to do so? Seems like they could come in handy if your main optic goes down so you don't always have to tilt your gun to the side (and seems like it would be superior to just carrying a spare set of BUIS since they'd already be attached/sighted in).

    However, I like my rifles to be simple: optic, BUIS, light, and sometimes some type of foregrip (generally a TD stubby). Seems like running 3 sights on the gun would just be messy as compared to my standard set up, and quite possibly not worth the hassle since the main optic going down permanently is a rare occurrence.

    Overall, just need a bit of help before I go and mount everything and get it sighted in. Not sure of all the ins and outs of offsets and was hoping those with more experience could offer some advice.

    Much appreciated for any you can provide.
    Last edited by DreadPirateMoyer; 07-03-13 at 11:51.

  2. #2
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    I’ve thought about this as well. I want to put together a 20” upper with a magnified optic and am interested in what people use who actually have a setup like that. It seems like you would want irons at 12 o’clock for long range shots if your optic went down, but the offset sights for use at close range seems like a good idea as well.

  3. #3
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    Have either of you had your optic fail for any reason whatsoever? Even if it were to fail would your situation be so dire that you would need to have not one, but two additional means of aiming the rifle?

    Seens to me you are trying to solve a non-problem...

  4. #4
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    I have two TA31ECOS, the ECOS line has built-in iron sights

    Roger Wang
    Forward Controls Design
    Simplicity is the sign of truth

  5. #5
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    Quote Originally Posted by legumeofterror View Post
    Have either of you had your optic fail for any reason whatsoever? Even if it were to fail would your situation be so dire that you would need to have not one, but two additional means of aiming the rifle?

    Seens to me you are trying to solve a non-problem...
    Yes, I've had my optic fail (going from cold to warm areas and getting external fogging; hence, one of the reasons for offset sights). No, I haven't had any fail permanently.

    With regards to your last question, I don't know if I could find myself in that situation or not. Maybe. Maybe not. Or maybe the occurrences are so few and limited it's not worth having another set of sights on there. I don't know. That's why I asked what people's experiences were.

    And I'm not necessarily trying to solve a non-problem. I saw the below picture on KAC's website and was wondering if this was actually something people did or not.


  6. #6
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    Oh, and Duffy: very jealous of your set up. I've got the TA02 LED version. Love everything about it except the lack of built-in BUIS options.

  7. #7
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    My humble opinion is that there is no need for rail mounted back ups if you have the 45 offset irons. A BUIS is there in case your primary fails. While this is rare, it can happen as a result of some electrical problem, a hit, or some other internal failure. Since back ups are simple mechanical designs (or at least should be) they aren't very prone to failure. Does it hurt... not unless you really don't want to add any excess weight no matter how insignificant it may be. In a way the 45 offsets are your back ups... practice to a high level proficiency with them and be confident in your system. Spend the money on something else (esp if you are looking at KAC back ups bc buying extra sets of those will rape your bank account hah)
    Last edited by midSCarolina; 07-03-13 at 15:47.

  8. #8
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    Quote Originally Posted by midSCarolina View Post
    My humble opinion is that there is no need for rail mounted back ups if you have the 45 offset irons. A BUIS is there in case your primary fails. While this is rare, it can happen as a result of some electrical problem, a hit, or some other internal failure. Since back ups are simple mechanical designs (or at least should be) they aren't very prone to failure. Does it hurt... not unless you really don't want to add any excess weight no matter how insignificant it may be. In a way the 45 offsets are your back ups... practice to a high level proficiency with them and be confident in your system. Spend the money on something else (esp if you are looking at KAC back ups bc buying extra sets of those will rape your bank account hah)
    This... +1

  9. #9
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    jesus doesn't anyone tie down there optics anymore? I do on my personal rifles. I would only have one set of irons either offset or at the 12.

  10. #10
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    2 sets of iron sights. For that guy who has 3 locks on his front door.
    RLTW

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