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My Yugo Underfold AK Build

Discussion in 'Rifle Discussion' started by korntera, Mar 29, 2009.

  1. korntera

    korntera Oregon Member

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    I finally gave my ak parts kit a home in a receiver here are some pics of the build we did. Not sure how other people do theirs but this is what my friend and I did...
    First we started by grinding the old receiver down the thickness of the new receiver on all 3 sides
    pic1.jpg

    Next we turned the receiver flat into an actual receiver with my friends homemade jig and 12 ton press
    pic2.jpg

    Finished Receiver
    pic3.jpg

    We heat treated the receiver at some of the stress points
    pic4.jpg

    Receiver spot welded to old receiver and rails welded in
    pic5.jpg

    Rear of receiver cut at 45 degree angle and old receiver and trunion cut at 45 degree angle and welded together.
    pic6.jpg

    Function check, everything goes click so we should hear a bang!
    pic7.jpg

    All grinded smooth and polished down with the dust cover on, just waiting on the trigger and pistol grip group buy now.
    pic8.jpg

    My friends finished AK and what mine will look like when its done. What is that receiver attached to in the background? Could that be a PSL build?
    pic9.jpg
     
  2. coctailer

    coctailer Portland, OR/Hastings, MI/Vancouver,WA I run with scissors.

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    WOW!!!!

    that was he hard way..........Looks really clean without the rivets though.

    Why did you choose to weld instead of rivet?
     
  3. coctailer

    coctailer Portland, OR/Hastings, MI/Vancouver,WA I run with scissors.

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    What flat was that?

    the bends look great. Did you scribe them before using the jig?

    Top rails already folded? Tapco?
     
  4. korntera

    korntera Oregon Member

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    Because I didn't have a way to rivet and didn't really know how to so welding seemed easier(plus my friend Sava6e on here) is the one that did it, i kinda just watched the welding part.
     
  5. korntera

    korntera Oregon Member

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    Yes top rails already folded. No we did not scribe it, we kinda did the hope this works eyeball it measurement and it worked!
     
  6. coctailer

    coctailer Portland, OR/Hastings, MI/Vancouver,WA I run with scissors.

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    Excellent work.
     
  7. finch6013

    finch6013 Oregon City Active Member

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    nice work
     
  8. needs2hunt

    needs2hunt Tacoma Wa. Member

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    right on I never thought about welding the trunnions to the receivers...hum:thumbup::thumbup::thumbup:
     
  9. korntera

    korntera Oregon Member

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    If anybody has any detailed questions about how it was done you can message sava6e he did all the welding for me and built his jig from scratch.
     
  10. sava6e

    sava6e Portland Member

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    well, i came up with the welding idea mainly because i didnt want to have to track down a front trunnion and press out the barrel and press it into a new trunnion, thus grinding down the origional forged receiver to specs and welding i figured woudl be way easier. count what used to be part of the receiver a foreign trunnion now and voila, however i have read on militaryfirearms.com that it is not considered a foreign part, even a letter from the fed to say so, but safe than sorry and i like to replace some of the parts anyways with new ones so it wasnt a big deal with 922 compliances.
     
  11. Anton

    Anton milwaukie Member

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    you selling it?
     
  12. sava6e

    sava6e Portland Member

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    As far as I know you can't really sell a homebuilt receiver with ease. I am curious how much you would be willing to pay!