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  1. #1
    Grandmaster Kirk Freeman's Avatar

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    Working AR-15 3-D Printed Upper

    3-D printed upper in .22lr.




    (Video demonstrating it being test fired)

    https://www.thefirearmblog.com/blog/...caliber-upper/
    We defy

  2. #2
    Grandmaster T.Lex's Avatar

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    That's amazing.
    Resident Warning Shot Statist.

  3. #3
    Grandmaster Kirk Freeman's Avatar

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    Quote Originally Posted by T.Lex View Post
    That's amazing.
    Star Trek replicator here we come.

    This stuff must terrify the antis.
    We defy

  4. #4
    Master shootersix's Avatar

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    my daughter printed me a extended magazine release for my ruger precision rimfire, i lasted about 2 range trips, on the third trip it broke after 10 rounds, I think 3d printing is a thing, but just not my thing, I couldn't imagine pulling little pieces of plastic out of my face after god knows how many rounds (could be any number including the 1st round) it'd take for that upper to explode!
    Never too many sigs in your safe!-mike4sigs

  5. #5
    Expert long coat's Avatar

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    I have a side folder and pistol brace on this one now.

  6. #6
    Grandmaster T.Lex's Avatar

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    Quote Originally Posted by Kirk Freeman View Post
    Star Trek replicator here we come.

    This stuff must terrify the antis.
    Keep the tribbles away.
    Resident Warning Shot Statist.

  7. #7
    Plinker

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    The technology opens up all kinds of possibilities.

  8. #8
    Grandmaster gregkl's Avatar

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    We print all kinds of fixtures for assembling parts where I work. They don't get the beating that a firearm dishes out but they take a pretty good beating and build 1000's of assemblies for quite a long time.

    A lot of it depends on the quality of the printer and selecting the best resin for the job.

    We make some fixtures that have to be within .002" without any additional machining.
    Outlier

  9. #9
    Expert dsol's Avatar

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    Someday the 3d printers will be known as the first primitive replicators. It is coming... plastic now, metal or mixes of materials cannot be that far down the road.
    Nature eliminates the stupid, regrettably the stupid breed faster.

  10. #10
    Master Tombs's Avatar

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    Quote Originally Posted by dsol View Post
    Someday the 3d printers will be known as the first primitive replicators. It is coming... plastic now, metal or mixes of materials cannot be that far down the road.
    Metal 3d printing has been a thing for many years now.



    Look up solid concept's 1911.

    SpaceX's Super Draco rocket engines are fully 3d printed.


    "Fiat justitia ruat caelum" - Trey Gowdy

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