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Thread: wrong barrel

  1. #1
    Gunco Veteran perry's Avatar
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    Default wrong barrel

    i bought a heavy 20" barrel and was building a retro m-16a1. wrong answer the barrel to thick for the old triangular hand guards.i never thought twice until mock up time.

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    3/6 Infantry mtdew's Avatar
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    Perry there may be a way. Just saw one built by a guy who worked at olympic arms when it was put together. He sold it to his nephew, who is the son of a co-worker. I'll see if I can get a look at it soon. It had HBAR bbl and triangle handguards I'm sure of it. Maybe someone here knows how its done.
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    Gunco Addicted for life j427x's Avatar
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    if you have a .750" sight/gas block you can open up the little triangle hand-guard retainer and use the H-bar anyway.

    many of the retro-pencil barrels have a .750" gas blocks to start with.

    who made your barrel? is it stripped or assembled?

  4. #4
    Gunco Veteran perry's Avatar
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    dpms makes the barrel and man its heavy.

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    Gunco Addicted for life j427x's Avatar
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    Quote Originally Posted by perry View Post
    dpms makes the barrel and man its heavy.
    front sight attached with pins?

  6. #6
    Gunco Veteran perry's Avatar
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    yes, they are.

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    Gunco Addicted for life j427x's Avatar
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    humm a DPMS H-bar has the correct stuff --so it should fit.

    what is making contact? the barrel to the heat shield?


    i have seen H-bars with the USGI triangle hand-guards -

    -hell i recently did a dissipator 16" 7.62x39 with H-barrel and under the hand-guards gas block and it fit with the USGI triangle hand-guards so i can't really sey how the triangle hand-guards would not fit the standard length H-barrel--???

    you might have a bent or warped heat shield--??

  8. #8
    Gunco Veteran perry's Avatar
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    called dpms and they told me that they make triangular handguards that are made for that particular barrels. so i guess ill get a order out tonite to them. not bad for 27.95 for the set.

  9. #9
    Gunco Veteran perry's Avatar
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    just checked out their handguard and its the a2 style so i guess ill order a green mountain pencil barrel.

  10. #10
    Gunco Good ole boy tanvil's Avatar
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    I saw one, it has to be doable. I didn't ask the guy how he did it.

    I did find this, Ar-15 build concerns - CMP Forums (post #10 links to pics)

    Take a look and see if you might need to remove some sheet metal off the hand guards.

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