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F marked, or not F marked... do I really need it

Discussion in 'Rifle Discussion' started by shibbershabber, Dec 15, 2015.

  1. shibbershabber

    shibbershabber Vancouver Well-Known Member

    Likes Received:
    So I am putting a flat top upper on my rifle that used to be in a traditional A2 configuration, but I want to scope it.

    There currently is a standard A2 FSB on there.

    I know the F marked ones are a bit taller to accommodate sights mounted on the flats

    Is this assuming an A2 handle/sight or any sight???

    In looking at the options, I see that the bolt on carry handle sights clearly need the higher FSB, however, the Magpul buis arent that tall... can I use them in conjunction with the standard height FSB????

    ANyone know?
  2. Garg

    Garg east of portland metro Hold my beer..... watch this

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    mjbskwim likes this.