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Thread: TNA's parts for the JR Carbine

  1. #1
    Business Member True North Arms Corp's Avatar
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    TNA's parts for the JR Carbine

    hey fine folks,

    We got around to stripping a JR Carbine in the shop to see how our parts fit and made some interesting discoveries.

    AR-15 Triggers
    The super crisp Elftmann 9mm trigger drops right in. CMC triggers fit well too. Would these high-performance triggers be desirable in a pistol calibre carbine like the JR?

    AR-15 Handguards
    Some folks who installed AR-15 handguards on the JR reported the barrel nut bottoms out on the receiver before the barrel tightens home. Our barrel nut shims of various thicknesses might be the solution to fill in the gap so the barrel hits home. Any JR Carbine users been down this road?

    On our copy of the JR we needed two 1.95mm shims to make our regular free-float M-LOK handguards fit just right.If you use a Super M-LOK (clamp style) handguard then we found that a 1.95mm shim plus a 0.9mm gives the best results.
    Last edited by True North Arms Corp; 05-09-2018 at 01:55 AM.
    True North Arms Corp.
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    HELP! I sold my soul to the internet
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    Tagged

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    Big Mouth slicknick's Avatar
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    Good to know
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  4. #4
    CGN Regular lavino's Avatar
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    Will your fake silencer can for 1/2x28 threads fit the JR barrel?

    https://truenortharms.com/products/f...tyle-uscmklsdf
    CCFR member now...

  5. #5
    CGN Regular tony9000's Avatar
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    Quote Originally Posted by lavino View Post
    Will your fake silencer can for 1/2x28 threads fit the JR barrel?

    https://truenortharms.com/products/f...tyle-uscmklsdf
    threads are only one thing to check, make sure a 9mm round can fit in the hole of the supppressor
    Everything i post, or ever posted, is for entertainment value. Draw your own conclusions, and always seek legal advice.

  6. #6
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    where do I find these shims you speak of

  7. #7
    GunNutz grumpyguy's Avatar
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    Quote Originally Posted by coldfire View Post
    where do I find these shims you speak of
    Re-read the first post where it’s highlighted..”barrel nut shims........”
    Diversity is social poison.

  8. #8
    Business Member True North Arms Corp's Avatar
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    Quote Originally Posted by coldfire View Post
    where do I find these shims you speak of
    barrel nut shims
    True North Arms Corp.
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  9. #9
    CGN Regular Loosethoughts's Avatar
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    You guys sell those damn receiver Allen key head screws?

    JR USA sells them for $3, but wants $24.95 to ship!
    My people are destroyed for lack of knowledge... - Hosea 4:6

  10. #10
    Business Member True North Arms Corp's Avatar
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    Quote Originally Posted by Loosethoughts View Post
    You guys sell those damn receiver Allen key head screws?

    JR USA sells them for $3, but wants $24.95 to ship!
    I'll put it on our shopping list to bring in, I'll let you know

    In a rush if you can bring one screw to a well-equipped hardware store they should be able to find you a match. imperial not metric
    Last edited by True North Arms Corp; 05-16-2018 at 02:49 PM.
    True North Arms Corp.
    Website truenortharms.com
    Email info@truenortharms.com
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