Simple Upper Question

Discussion in 'AR-15 Discussion' started by Shihan, Jul 26, 2011.

  1. Shihan

    Shihan Active Member Lifetime Supporter

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    This is going to be easy to answer. Just what is a Keyhole upper? What makes it different from another or is there a difference? I just see it mentioned on occasion and was curious.
     
  2. cddbrowns

    cddbrowns New Member

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    Cerro Forge did the forging I think....could be wrong.
     

  3. JonM

    JonM Moderator

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    you are correct. cerro forge is a major supplier to many vendors who just stamp their mark on someone else's work.

    very few makers will tell you where they get their pieces from. there is a distinct difference between an ar assembler like red jacket and a company that rolls their own recievers.
     
    Last edited: Jul 26, 2011
  4. Quentin

    Quentin New Member

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    Yep, Cerro Forge and they put their keyhole forge mark on uppers, lowers and carry handles used by Colt and many others.