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Co witness with Primary arms

Discussion in 'Black Rifle Forum' started by Fwdftw, Jan 6, 2011.

  1. Fwdftw

    Fwdftw

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    What is needed to co witness with the primary arms micro dot? i know ive seen in some videos they were saying that it wasnt possible? I just want the dot on the front sight post like my eotech was. and to co witness with my MBUS thanks!
     
  2. Agent6-3/8

    Agent6-3/8

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    My PA Micro co-witnesses perfectly on my AR using the quick disconnect riser that cost a little extra. When I flip up my BUIS and aim using them, the dot sits right on the front post, as it should.
     

  3. lawboy

    lawboy

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    ^ This. I have the Micro Dot with the Primary Arms QD mount and the Magpul MBUS, which allows for a 1/3 co-witness.
     
  4. NeverMore1701

    NeverMore1701 Fear no Evil Platinum Member

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    I think because of the location of the emitter, only a lower 1/3 cowitness is possible, not an absolute cowitness. I have mine on an ADM mount that's supposed to be absolute with a real T1, but is lower 1/3 with the PA. I don't really care either way.
     
  5. faawrenchbndr

    faawrenchbndr DirtyThirty fan CLM

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    I have a Larue Tactical mount for my PA, LT660HK.
    It provides absolute cowitness
     
    Last edited: Jan 7, 2011
  6. MARSH1

    MARSH1 Dealer Silver Member

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    The video is of a older design. The current removable base Micros and our Riser work great.

    Marshall
     
  7. GlockViking

    GlockViking

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    Being kinda new to this, I have a related question...is co-witnessing necessary or is it simply an option for those with the FSB?
     
  8. MARSH1

    MARSH1 Dealer Silver Member

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    Cowitness is the ability to see your iron sights, when they are lined up, through the red dot sight window. This thread explains it. You will need the riser on a AR or it would be way too low.

    http://www.ar15.com/forums/topic.html?b=2&f=325&t=196133
     
    Last edited: Jan 6, 2011
  9. Whiskey Six

    Whiskey Six Marine 0369 Platinum Member

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    I think the OP wants absolute co witness with the red dot on top of the front sight post. Not lower 1/3. Is this possible? I am also curious.

    Nevermind. I just read the above link. Good explanation.
     
  10. Boxerglocker

    Boxerglocker Jacks #1 Fan

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    [​IMG]

    Excellent illustration
     
    Last edited: Jan 7, 2011