20mm chinese barrel journal?
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Thread: 20mm chinese barrel journal?

  1. #1
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    20mm chinese barrel journal?

    working on a chinese build right now...
    trunnions in, tg on, blued the receiver, ready to install barrel and it dropped in.
    not like a hand tight fit but more of a hot dog in the hallway.
    original barrel stub measures .890" if i remember right or 20mm.
    WTF? ive built a few of these actual military kits and mak90 barrels have always worked nice.
    wondering if anyone has ran into this. was there a period where they went to 20mm?
    card wasnt in my camera ill get some pics up.
    factory 56 trunnion i think.
    07 ffl


  2. #2
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    trunnion


    og barrel stub


    mak90 barrel
    07 ffl


  3. #3
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    Uh, Houston? Think we have a problem...
    LOOKING FOR: Postban Chicom (squareback) Rifle, '65 EG MPi-KM kit, Soviet and East German AKM Barrels, Soviet AKM U/F Stock Assembly, Polish Milled Receiver Front Stub

    I can organize and sell your Commbloc weapon/parts/accessory collection
    if you lack the time or desire; send a PM if interested.

    Kalashnikov Collectors Association

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    since i posted this ive had a couple people tell me they ran into this.
    one mak90 w/ a sleeved barrel and onother one scrubbed trunnion w/ a mak90 overstamp.
    they must have trunnion journal sizes 1-150 or something.
    pinakar convinced me to make a bushing for this.




    somethg to keep in mind when buying/building chinese kits.
    MPiKM-72 and pinakar like this.
    07 ffl


  6. #5
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    Weird., but a good solution.
    MPiKM-72 likes this.

  7. #6
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    With over 20 different factory codes, something is bound to be different. The trunnions seem to fall into two different types; Square top, and the slanted top like in your pic.

  8. #7
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    good point. im just sort of surprised ive never heard it mentioned before.
    i guess there isnt a ton of chinese stuff getting built from kits though
    07 ffl


  9. #8
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    So this is why I mentioned it to BR.... These are photos from my milled MAK-90

    This is factory done..... look closely......

    It almost looks like they tack welded the sleeve in first...

    You tun hoe to big! Betta fix beofe you get fire!



    Last edited by pinakar; 04-20-2017 at 03:51 PM.
    BR7.62 likes this.

  10. #9
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    Quote Originally Posted by BR7.62 View Post
    since i posted this ive had a couple people tell me they ran into this.
    one mak90 w/ a sleeved barrel and onother one scrubbed trunnion w/ a mak90 overstamp.
    they must have trunnion journal sizes 1-150 or something.
    pinakar convinced me to make a bushing for this.




    something to keep in mind when buying/building chinese kits.
    Looks factory to me!

  11. #10
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    Nice job!
    WTB:

    Russian Type 1 or 2 parts/kit

  12. #11
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    I have yet to see them all, but I cannot find the Military version of the milled MAK90/Legend by factory 386. It seems to be a civi only product. All the modern "milled" military guns seem to screw in jobs by factory 26. By modern, I mean guns made after Factory 66 seemed to transition to stamped.

 

 

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