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Thread: SGN-9

  1. #1
    gunco irregular moleman's Avatar
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    Default SGN-9

    Anyone else see the article in the april 20th SGN about the suomi based 9mm rifle? It looks pretty straight forward and the guy said he built it for about $175. I'm sure I have a complete spare set of AR15 fire control parts which would bring the price down as well as various other scrap that could be used. I think I'll order 2 suomi kits and give it a try.

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    No Hope For Me Coils's Avatar
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    No, didn't see it, but thanks for the heads up.
    Keep the article you might need to scan it for some of us.

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    Gunco Regular Shadow Walker's Avatar
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    Thanks for the heads-up. I haven't received my April 20 SGN yet.

    I'm in luck, I already have the Soumi parts kits.

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    gunco irregular moleman's Avatar
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    It just came in the mail friday. Heres a picture of what I'm talking about. The author Matthews built the receiver out of 1.25"x.120 wall thickness steel 4140 tubing which is the only thing I'm having difficulty finding at the moment. It ended up looking more like a S&W 76 than a suomi, but I think it might be adapted to fit in the Soumi stock. He made it use cheap sten mags and ar15 fire control parts. The only specialized tools you need are a lathe and a welder which I have.
    Attached Images Attached Images

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    Gunco Regular Shadow Walker's Avatar
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    Aircraft Spruce.com has the tubing you need, as well as other sizes that you might find handy for building certain firearms, like semi-auto Stens and etc.

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    gunco irregular moleman's Avatar
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    Thanks for the info. I can't figure out why he didn't use the original Suomi barrel shroud on that design. He already had it so it would be free.

  7. #7
    Gunco Regular Shadow Walker's Avatar
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    It was most likely easier to use a full length tube set-up. One thing for sure, with the .120 inch thick tube (heavy) there should be absolutely no kick.

    The thickness of the tube was probably not the determining reason for choosing the tube, but was choosen instead for the I.D. of the tube. Just a guess on my part, tho.

  8. #8
    gunco irregular moleman's Avatar
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    Thats what I thought as well looking at the picture, but he used thinner walled 1-1/4"x .062" tubing for the barrel shroud. I was planning on trying to use the suomi shroud and if not then going the same route as he did. Some things I was thinking about was to use a different recoil system on one if I was going to use the suomi stock, possibly putting a rail on the top so you could put ar15 sights or a red dot on it, and moving the bolt handle forward. It looks neat though.

  9. #9
    Gunco Regular Shadow Walker's Avatar
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    Perhaps my SGN issue will come in tomorrow. I am looking forward to seeing how the build is made. It does have my attention.

  10. #10
    No Hope For Me Coils's Avatar
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    Thanks Moleman, that does look neat and I like the STEN mag idea, I got a few of them.

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