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Thread: Mil-Spec Buffer tube ?

  1. #11
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    The Threads measure the same as the receiver tube.

  2. #12
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    The two sizes suck.
    Last edited by SteveS; 08-13-13 at 22:04.

  3. #13
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    Quote Originally Posted by C4IGrant View Post
    Colt builds War Horses, not show ponies.
    Quote Originally Posted by Iraqgunz View Post
    This is 2012. The world is going to end this December and people are still trying to debate the merits of piece of shit, cost cutting crap AR's. Really?

  4. #14
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    Thanks again for all the information. I checked the ends of the receiver tubes and they are flat(square),as in the photo from sinlessorrow. I noticed that in the photo it had 1.148 as mil-spec. other places say 1.147. Must be a little variance allowed.

  5. #15
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    Quote Originally Posted by Kramm View Post
    Thanks again for all the information. I checked the ends of the receiver tubes and they are flat(square),as in the photo from sinlessorrow. I noticed that in the photo it had 1.148 as mil-spec. other places say 1.147. Must be a little variance allowed.
    Did you check the threads as well?
    Quote Originally Posted by C4IGrant View Post
    Colt builds War Horses, not show ponies.
    Quote Originally Posted by Iraqgunz View Post
    This is 2012. The world is going to end this December and people are still trying to debate the merits of piece of shit, cost cutting crap AR's. Really?

  6. #16
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    as said, threads are the best/easiest way to tell. Mil has threads pressed on. The commercial tubes have the threads cut into the metal.

  7. #17
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    Quote Originally Posted by MegademiC View Post
    as said, threads are the best/easiest way to tell. Mil has threads pressed on. The commercial tubes have the threads cut into the metal.
    That is true for all real milspec tubes, but be careful...there are milspec diameter tubes on the market that have cut threads, and I would be willing to bet if you search hard enough you could find commercial diameter tubes with rolled threads.
    --Nick
    Owner, Reptilia & Side Project, LLC

  8. #18
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    Quote Originally Posted by NickB View Post
    That is true for all real milspec tubes, but be careful...there are milspec diameter tubes on the market that have cut threads, and I would be willing to bet if you search hard enough you could find commercial diameter tubes with rolled threads.
    I'd be willing to bet no one rolls threads on to the receiver extension, mil-spec of otherwise. I suppose it's possible, the min pitch diameter of the threads is the same as the min tube diameter, but it's not cost effective or required.

  9. #19
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    Quote Originally Posted by JBowles View Post
    I'd be willing to bet no one rolls threads on to the receiver extension, mil-spec of otherwise. I suppose it's possible, the min pitch diameter of the threads is the same as the min tube diameter, but it's not cost effective or required.
    You might want to call up Colt and tell them they're doing it wrong.
    --Nick
    Owner, Reptilia & Side Project, LLC

  10. #20
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    sinslessorrow,
    Yes I measured the threads(post# 11),they are the same as the tube. Also they look as though they are cut into the tube. I'm not a machinist though.

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