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Op Rod Specs

Discussion in 'The Powder Keg' started by shaddownone, Mar 16, 2002.

  1. Lets get the info rolling here then.

    Let me ask the first question.

    What are the specs for:

    1) Button on the end of the OP ROD?

    2) inside dia of the gas tube?

    I have two of each from parts kits to choose from.
    One of the rods has NM stamped on it.
    Is the NM op rod and gas tube diffrent in specs in the above?
    I don't see anything on the tubes. :confused:
  2. lefty o

    lefty o G&G Evangelist

    looking in the army tech manual for the m1-c, and m1-d the minimum diameter of the op rod piston is .525 inch, the minimum diameter of the gas cylinder bore is .5320 inches, there is no max listed , hope this helps.

  3. Yes it did. I have one at .527 and another at .523. Thanks for the info...