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  1. #1
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    WTT Buffer Tubes

    WTT Vltor A5 or LMT Buffer Tube for a 7075 carbine buffer tube.

    I built a rifle for my cousin who is fresh out of the Marines. Test fired the upper on a few lowers to make sure all was well before I give it to him, and discovered it seems to like a carbine system with an H1 better than the Vltor A5 I put on it.

    Problem is the only carbine tube I have laying around is an LMT, and on that particular lower thereís some tolerance stacking that wonít let it work.

    I have one other, but itís a POS with a rough interior that feels and sounds like a spoon over a cheese grater and Iím not willing to use that on a gun that isnít mine. ESPECIALLY on a gun that isnít mine.

    So, Iíll trade either the Vltor or the LMT, whichever you want, for a good, smooth inside, 7075 carbine RE. As long as it isnít from Strike Industries.


    ETA:
    Also, if you want the Vltor Tube, Iíve got an A5H1 buffer Iíd trade for an H1.
    Last edited by Aragorn; 8 October 2019 at 15:58.
    -One Nation, Under God

    -"The bad news is time flies. The good news is you're the pilot." ~ Michael Althsuler

  2. #2
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    What tolerance stacking keeps a buffer tube from working? That seems very odd.

  3. #3
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    When installed to where the buffer retaining pin is retained, the front of the buffer tube protrudes into the lower *just* far enough that it pushes the upper forward to where both T/D pins can’t be slid back in place. Had me confused for half of ever trying to figure out why I couldn’t get the pins back in. The protrusion is minuscule, but just enough with that lower to be an issue.
    -One Nation, Under God

    -"The bad news is time flies. The good news is you're the pilot." ~ Michael Althsuler

  4. #4
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    PM sent.

    FT
    NRA Life Member
    Deplorables Life Member



  5. #5
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    I should add that the buffer tube works fine on the other lower I tried it with, but that lower is sporting a PWS buffer tube I’m not willing to swap out permanently. Likewise, the PWS, the Vltor, and the junk buffer tube all work fine on the lower that disagrees with the LMT.

    Just a case of bad luck with tolerance stacking on my end.
    -One Nation, Under God

    -"The bad news is time flies. The good news is you're the pilot." ~ Michael Althsuler

  6. #6
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    Quote Originally Posted by Aragorn View Post
    When installed to where the buffer retaining pin is retained, the front of the buffer tube protrudes into the lower *just* far enough that it pushes the upper forward to where both T/D pins can’t be slid back in place. Had me confused for half of ever trying to figure out why I couldn’t get the pins back in. The protrusion is minuscule, but just enough with that lower to be an issue.
    Thanks. That's interesting. I had to go break open one to see what you are talking about but now I can see how that could happen.

  7. #7
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    Yeah, first time Iíd ever seen anything like it.

    Looks like FT has got me hooked up. Thanks!

    FT PM replied.
    -One Nation, Under God

    -"The bad news is time flies. The good news is you're the pilot." ~ Michael Althsuler

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