Need a flat top gas block for a traditional quad rail (not free floating)

Discussion in 'Auto & Semi-Auto Discussion' started by GunNut3123, Feb 26, 2014.

  1. GunNut3123

    GunNut3123 New Member

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    I have been looking, but it seems like most of the replacement gas blocks are designed to go with free float hand guards. I have a traditional quad rail with an A2 style front sight. I would like to remove the A2 so it does not block my ACOG sight picture. Can anyone give me some suggestions please? ImageUploadedByFirearms Talk1393397100.419684.jpg ImageUploadedByFirearms Talk1393397122.139958.jpg

    Thanks for your help!


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  2. GunNut3123

    GunNut3123 New Member

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    Btw, my AR is a S&W MP Sport.


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  3. nosaj

    nosaj New Member

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  4. GunNut3123

    GunNut3123 New Member

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    I ended up calling a local AR builder/customizer and found out that as long as the quad rail does not extend past the original sight post, then any after market gas post will work. Even if it says "low profile." The low profile ones are just meant to be marketed to those who want a free-float hand guard.
    Thanks for your help tho!


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