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Thread: HK/SL8 Rear Sight Compatibility

  1. #1
    Gets the Shakes if No HK Contact in 24 Hour Period
    FireGS's Avatar
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    Default HK/SL8 Rear Sight Compatibility

    I had to take the front and rear sights off my SL8 to put a scope on it, and now I'm wondering, will those sights attach to a standard Rail, and not the HK rail? See, I'm building an AR right now, and I'm looking into a BUIS, but I remembered I have those HK sights, but I need to know if it would line up with the front sight of an AR... Anyone know? I'm away from my home for a few days, and have yet to get my AR upper. Any help would be GREAT!

    Thanks tons!
    ~Fire

  2. #2
    Junior Member

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    As long as the points you are mounting them on are on the same plane. they are made of plastic, so you can file to fit if you need.

    Chad
    A Sucking Chest Wound is god's way of saying "Slow Down"

  3. #3
    Gets the Shakes if No HK Contact in 24 Hour Period
    FireGS's Avatar
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    Well, im using the default M4 front sight, so I know the bases wont line up, but I'm wondering if the top will...

  4. #4
    HKPRO PREMIUM PARTNER
    seven.sixtwo's Avatar
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    I know that the BUIS from an SL8-1 rail will not fit the aluminum SL8-6 rail without pounding them on (I tried) IOW I don't think they will go on easily but like dirt bag said it is possible. HTH

  5. #5
    Gets the Shakes if No HK Contact in 24 Hour Period
    FireGS's Avatar
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    Proof. SL8-1 Rear sight will fit a regular rail (weaver/picatinny). Finally was able to try it out, and I got it to work with very little effort.



    I is happy. Now... will it line up with an M4 front sight....

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    Just watch with AR's. The nice thing about AR's (go ahead HKPro, scorn me for defending my first love!!) is that everything is standard. The sight may fit on the rail, but may not be high/low enough to properly zero.

    If need be, I can take calipers and measure the height of my Troy rear BUIS' peep sight to give you a rough guestimate. However, I highly doubt an HK sight is going to work on an AR15 except for maybe the 416/MR223 stuff.

    I have a Troy rear BUIS and carry handles I can compare to.

  7. #7
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    If you want HK sights on an AR, check out these guys:

    http://www.bravocompanyusa.com/Centu...iron%20set.htm

    That'll work 100% and allow you to co-witness with any standard AR15 optic (Aimpoint, Trijicon ACOG, EOTech)

  8. #8
    Gets the Shakes if No HK Contact in 24 Hour Period
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    Quote Originally Posted by SweedishMurdrMachine View Post
    If you want HK sights on an AR, check out these guys:

    http://www.bravocompanyusa.com/Centu...iron%20set.htm

    That'll work 100% and allow you to co-witness with any standard AR15 optic (Aimpoint, Trijicon ACOG, EOTech)
    Actually, I'd love a rough estimate!

  9. #9
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    OK, I'm going to my dad's house today for Thanksgiving and I'll see if I can use his calipers then.

  10. #10
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    OK dude, here's the best I can do. I am no machinest, I'm a web designer so someone may want to back me up here.

    Measuring from the top of the Pic. rail, I measure 1.425" from the very top of a Pic. rail to the center of my Troy BUIS.

    I'm using regular (non-digital) calipers and it says I'm at 1 and 4/10" and on the dial I'm half way between 20 and 30. So I called my dad and he agrees I'm at 1.425".

    I'll post a pic later if I can.

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