Standard White Ring Sight and USG Black Ring Sight

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Thread: Standard White Ring Sight and USG Black Ring Sight

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    Standard White Ring Sight and USG Black Ring Sight

    Now I know some of you on here are worried about the height of your sights so I thought I would share some pictures I took today.
    I didn't have a ruler with me but guessing, I would say that the USSS ring sight is about 5mm shorter than the Factory White Ring Sight.

    For a dimensional Comparision of the two ring sights, the USSS black ring sight is smaller than the white ring sight.

    White Ring Sight on Left and USSS RBlack Ring Sight on Right. Note the USSS right sight is smaller in height.




    Sorry for the poor pictures, I had some bad lighting problems.


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    Senior Member ShipWreck's Avatar
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    Thanks for the pics. Interesting....

    Just from prev photos, I knew the shape was at least a little different.

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    Senior Member metroplex's Avatar
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    The USG sight does look a little shorter. FN should have started selling the PS90s with the USG sight rather than hand out the inferior MC-10-80.

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    Senior Member ShipWreck's Avatar
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    They are now, but they charge more for that version.

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    I know this gets confusing because its different all over the internet but according to Ring Sight.

    From Ring Sights:
    HC-14-62 - White Reticle Ring Sight with plastic housing.
    MC-10-80 - Black Reticle Ring Sight with metal housing.
    Wiki has it listed the other way around. Personally I am a bit confused myself. Maybe someone can ask FN in the next Q&A for a difinative answer.

    ---------------
    RING SIGHT HC-14-62
    FN chose our HC type with a circular aperture of 14mm diameter for their P90 sight. The HC design has a dual reticle - rings and a dot for day, open T for night. The open T doesnot obscure the target which may be difficult to discern if the reticle overlays it.Its height is greater, for a given aperture, than the LC type but this can easily be fitted intothe space between the barrel axis and the sight line. On the P90 the optic housing is plastic and the interface of the housing with the gun is by two zeroing screws.The optic can be put into other housings such as one with a laser pointer beneath it,complete with the laser battery, on a zeroing mount with range settings, the whole on adovetail interface for the British 5.56mm rifle.



    RING SIGHT MC-10-80
    The MC-10-80 is specifically designed for the FN Herstal P90. The sight is a unit power telescopic sight with a black graticule for day use and a open T for night use lit by a red tritium light source. Being NVG compatible it is ideally suited to 24 hour operations.

    --------------
    Here is the info direct from Ring Sight:
    http://64.233.167.104/search?q=cache...lnk&cd=5&gl=us

    http://www.ringsights.com


    This one shows the (rear light collector) "T-bar" lit up with a flashlight.
    PS90_night_sight[1].jpg


    This is the front light collector of the White Ring Sight.
    frontlightcollector.jpg


    This is the rear light collector of the White Ring Sight (A). notice the white tritium bar at the bottom of the well (B).
    rearlightcollector.jpg


    This is the bottom view of the White Ring Sight. You can see the white tritium bar imbedded in the clear gel caseing.
    tritiumbar.jpg






    Here is a great web site that has lots of info on the PS90.
    Overview (size, weight etc.)
    Mechanical Characteristics
    internal and external parts descriptions
    ballistics charts
    http://en.wikipedia.org/wiki/FN_PS90



    Click on this link to get a detailed description of how the white ring sight works. It even has a visual.

    http://www.remtek.com/arms/fn/p90/sights/index.htm



    Check this link out. It also has info on the 2 Ring Sights.

    http://www.ringsights.com/Products/s...c/MC-10-80.htm





    Last edited by M1P90; 01-18-2015 at 08:26 AM.
    Si Vis Pacem, Para Bellum
    "If you wish for peace, prepare for war"


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    It would be GREATLY appreciated if someone with a Black Ring Sight could post some pictures here. Lets add on to this sticky!
    Si Vis Pacem, Para Bellum
    "If you wish for peace, prepare for war"


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    Senior Member metroplex's Avatar
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    The tritium isn't replaceable because Ring Sights won't replace anything, heck they won't even respond to emails.

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    Quote Originally Posted by M1P90
    It would be GREATLY appreciated if someone with a Black Ring Sight could post some pictures here.
    I would but everytime I try to take a picture of the reticle its all blurry.

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    OK, here you go.
    These are the best pictures I could take and it took me many tries to get these.

    USSS Sight Front View


    USSS Sight Top View


    USSS Sight In Complete Darkenss


    USSS Sight in Natural Day Light

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    Those look great tqtran. Thanks for the pics.

    oh .. buy the way. could you get a pic of the rear sight optic area so we can compare it with the White Ring Sight rear light collecting area.

    Thanks again for your help.
    Si Vis Pacem, Para Bellum
    "If you wish for peace, prepare for war"


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