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5.7x28 top end for AR

Discussion in '5.7 X 28mm Club' started by G33, Nov 26, 2010.

  1. G33

    G33 Frisky! Millennium Member CLM

    28,099
    2,062
    May 29, 1999
    With G29
  2. Fire_Medic

    Fire_Medic Polymer Butcher CLM

    8,097
    12
    May 19, 2008
    The Gunshine State
    Sweet! We have one upper in 5.7 at the shop I work at part time, very tempting but there are a few other expensive shooters I would like to have first.
    :supergrin:
     


  3. G33

    G33 Frisky! Millennium Member CLM

    28,099
    2,062
    May 29, 1999
    With G29
  4. G33

    G33 Frisky! Millennium Member CLM

    28,099
    2,062
    May 29, 1999
    With G29
  5. TN.Frank

    TN.Frank Glock4Life

    5,700
    199
    Oct 11, 2004
    Avondale, AZ.
    I like that it uses FN P90 mags, that's just dang cool right there. I'd like a P-90 but at $1500 it doesn't look like it'll happen anytime soon but if the uppers are reasonably priced I could build up a AR lower then add the upper and have the best of both worlds.
     
  6. curly2k3

    curly2k3

    28
    2
    Jul 27, 2014
    MN
    I've got two of the AR57 prototype uppers sitting on the work bench that I've gotta complete at some point (one for myself, the other for my buddy). Any chance I could get pics of the mag retention and charging handle? Thanks in advance
     
  7. One Ragged Hole

    One Ragged Hole Dis ain't funny

    441
    6
    Nov 13, 2002
    Just hangin around
    I have the same upper. Really fun to shoot, and kinda cool that it ejects the spent rounds through the mag well straight down. The only issue I had was no mention was made in the instructions that you need the short buffer tube and not the longer one. I got the upper when they first came out, to go along with my fiveSeven.