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A2? A4? M4?

Discussion in 'GATE AR-15 Forum' started by Medford4, Feb 18, 2011.

  1. Medford4

    Medford4 Hired Gun

    Nov 15, 2003
    I'm about to invest in an AR rifle. I understand the 5.56 /.223 chamber differences, but while I'm looking, I'm coming across evidently several different models, A2, A4, and M4 mainly. Could somebody explain the differences in these models, and the advantages/disadvanges of each, or at least direct me to an article on this subject? Thank you.
  2. Constructor

    Constructor Moderator

    Dec 10, 2009
    As far as civilian purposes
    A2 has a fixed carry handle with sight built in, stock is 5/8" longer than A1.
    A4 has a removable carry handle and sight with a flat top rail for mounting optics.
    M4 is a 16" carbine, collapsable stock, f sight base, the receiver has longer feed ramps to help reliability, also flat top rail for mounting optics.

  3. Medford4

    Medford4 Hired Gun

    Nov 15, 2003
    Probably a stupid question, but I appreciate the answer.