close

Privacy guaranteed - Your email is not shared with anyone.

Co witness with Primary arms

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


  1. Fwdftw

    Fwdftw
    Expand Collapse

    Joined:
    Apr 18, 2009
    2,529
    0
    Location:
    Hernando MS
    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!
     

    Wanna kill these ads? We can help!
  2. Agent6-3/8

    Agent6-3/8
    Expand Collapse

    Joined:
    Aug 25, 2006
    7,546
    105
    Location:
    The ramparts of civilization
    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
    Expand Collapse

    Joined:
    Jan 22, 2010
    96
    0
    ^ 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
    Expand Collapse
    Fear no Evil
    Platinum Member
    1. Glock Talk's Drunk Squad

    Joined:
    Jun 25, 2004
    38,319
    3,586
    Location:
    Amarillo, Tx
    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
    Expand Collapse
    DirtyThirty fan
    CLM

    Joined:
    Nov 24, 2005
    36,041
    399
    Location:
    Troy
    I have a Larue Tactical mount for my PA, LT660HK.
    It provides absolute cowitness
     
    #5 faawrenchbndr, Jan 6, 2011
    Last edited: Jan 7, 2011
  6. MARSH1

    MARSH1
    Expand Collapse
    Dealer
    Silver Member

    Joined:
    May 21, 2007
    688
    0
    Location:
    Texas
    The video is of a older design. The current removable base Micros and our Riser work great.

    Marshall
     
  7. GlockViking

    GlockViking
    Expand Collapse

    Joined:
    May 5, 2003
    1,755
    158
    Location:
    An Uncommon Commonwealth
    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
    Expand Collapse
    Dealer
    Silver Member

    Joined:
    May 21, 2007
    688
    0
    Location:
    Texas
    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
     
    #8 MARSH1, Jan 6, 2011
    Last edited: Jan 6, 2011
  9. Whiskey Six

    Whiskey Six
    Expand Collapse
    Marine 0369
    Platinum Member

    Joined:
    Jul 25, 2007
    1,798
    0
    Location:
    Kansas
    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
    Expand Collapse
    Jacks #1 Fan

    Joined:
    Mar 6, 2003
    6,143
    24
    Location:
    Lynnwood, WA
    [​IMG]

    Excellent illustration
     
    #10 Boxerglocker, Jan 7, 2011
    Last edited: Jan 7, 2011