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Thread: Military and the Middie

  1. #21
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    Quote Originally Posted by gotoplanb View Post
    I know that the mil is looking to possibly get a piston system but does anyone know or think that they will adopt the middie at some point?
    What is a middie?
    Todd
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  2. #22
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    Quote Originally Posted by Todd00000 View Post
    What is a middie?
    Middie = Mid-Length gas system

    Carbine
    Mid
    Rifle

  3. #23
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    The military won't switch, it shouldn't. A few modifications to the current system would be the most cost-effective solution. A new round would probably be best. But, as everyone else is saying, the reasoning to switch isn't there. Nothing has come out that completely destroys the DI M4. Switching would not only cost a HUGE amount, but then you have to retrain EVERYONE on the system. And, the AR piston system has not been refined for 40+ years with fielding in just about every situation and application possible.
    Sic semper tyrannis.

  4. #24
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    Quote Originally Posted by gotoplanb View Post
    Middie = Mid-Length gas system

    Carbine
    Mid
    Rifle
    I'm sorry but I'm still confused as the M4 barrel has it's gas port at 7.5 inches of a 14.5 inch barrel, doesn't that make it a "middie?"
    Todd
    Colt/BCM

  5. #25
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    Quote Originally Posted by Todd00000 View Post
    I'm sorry but I'm still confused as the M4 barrel has it's gas port at 7.5 inches of a 14.5 inch barrel, doesn't that make it a "middie?"
    yes and no, in a 14.5" barrel with 7" gas port makes it equivalent to a 16" barrel and a 9" gas port. for all practical purposes here though most people have a 16" barrel and a 7" gas port (most typical civilian carbine configuration). Most can't get anything less than a 16" barrel due to legal restrictions (NFA). Personally I wouldn't want a barrel with a flash hider welded on.
    Last edited by gotoplanb; 01-30-12 at 14:28.

  6. #26
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    No. A mid-length gas system is hallmarked by the length of the gas tube, in and of itself, not where it falls on the length of any given barrel.

    Carbine = 7" gas tube

    Mid-length = 9" gas tube

    Rifle = whatever length a rifle gas tube is. 11", innit?
    Contractor scum, AAV

  7. #27
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    The mid-length gas port is 9.5 inches from the chamber. Rifles in this configuration are what is being referred to when you hear "mid-length" or "middy/middie".

    ETA: Rifle is 13 inches, not 11.
    Last edited by Scorpion; 01-30-12 at 14:30. Reason: Santoro beat me to it

  8. #28
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    but you can have the equivalent by dropping the barrel length to 14.5" and a 7" gas tube.

  9. #29
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    Quote Originally Posted by gotoplanb View Post
    yes and no, in a 14.5" barrel with 7" gas port makes it equivalent to a 16" barrel and a 9" gas port.
    No, not "yes and no." Just "No."

    A 16" w/mid-length gas is a 16" w/mid-length gas.

    It is not "equivalent" to a 14.5" barrel w/carbine gas, because you have two dimensions that are completely dissimilar from one another. Add the variables like ammo, buffer, spring, wear rates of all and other components...

    "Equivalent" according to which metric?

    And, what's this got to do with what the military supposedly is or is not going to select or how it supposedly (which is to say, largely imaginarily...) views mid-length gas systems?
    Contractor scum, AAV

  10. #30
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    Quote Originally Posted by JSantoro View Post
    No. A mid-length gas system is hallmarked by the length of the gas tube, in and of itself, not where it falls on the length of any given barrel.

    Carbine = 7" gas tube

    Mid-length = 9" gas tube

    Rifle = whatever length a rifle gas tube is. 11", innit?
    Quote Originally Posted by Scorpion View Post
    The mid-length gas port is 9.5 inches from the chamber. Rifles in this configuration are what is being referred to when you hear "mid-length" or "middy/middie".

    ETA: Rifle is 13 inches, not 11.
    Thanks guys, makes sense now, found this too.
    http://www.03designgroup.com/technot...gth-gas-system
    Todd
    Colt/BCM

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