milled?

Discussion in 'Auto & Semi-Auto Discussion' started by Winchesterfield, Oct 15, 2007.

  1. Winchesterfield

    Winchesterfield New Member

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    What does it mean if a gun is "milled"?
     
  2. matt g

    matt g New Member Supporter

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    It generally means that the receiver was produced by cutting it on a milling machine, rather than being cast or investment molded.
     

  3. Dgunsmith

    Dgunsmith New Member

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    Milled:

    typically milled on a CNC milling machine. Production done on 3 or 4 axis with built in tool changer to save time.

    AR lowers are either milled from a forging or an investment casting.

    A 100% milled receiver would be milled from a solid plate or billet,in which the mill cuts the entire shape out.

    The original Rocky Mountain Arms "Patriot" 223 pistol was available with a milled billet upper and lower receiver. Very precise.

    I think Brownells offers a milled Billet AR lower currently...in the $ 300 range due to the machine time in producing such a part.

    3X the machinetime of milling out a forging which has the basic exterior formed.

    There were milled AK's as opposed to folded, welded stampings.