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Thread: 100% cast polymer lower made at home?

  1. #11
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    Quote Originally Posted by elephant View Post
    I use 3d printers at my work to show customers what there product will look like after we make extensive modifications. I'm optimistic but I don't see 3d printed gun parts having any real value, as far as a upper or lower or anything for that matter. I know the medical field is using 3d printers to make new hip replacements and knee replacements but I'm sure those printers are upwards of $1 million. And Lockheed Martin uses a sintering machine to make parts for the F-22 and F-35
    So they might be viable in a few years? 3D printing just seems like the holy grail for manufacturing a firearm without excessive skill. There's a store near me that offers 3D printing services, and I've been wondering what it would entail to print a lower and test it out.

  2. #12
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    100% cast polymer lower made at home?

    If I remember correctly, the ATF frowns heavily upon printing a receiver. Look it up, because I may be wrong.

    Edit: only if it can't be picked up by an imager/metal detector at an airport.

    https://www.atf.gov/qa-category/3-d-...ology-firearms

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    Last edited by The FNG; 02-01-16 at 15:05.
    It's better to be thought a fool than to open your mouth and remove all doubt.

  3. #13
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    The ATF frowns on everything firearms related that they can not get a piece of. Printing a lower receiver is definitely on that list.

  4. #14
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    Quote Originally Posted by The FNG View Post
    If I remember correctly, the ATF frowns heavily upon printing a receiver. Look it up, because I may be wrong.

    Edit: only if it can't be picked up by an imager/metal detector at an airport.

    https://www.atf.gov/qa-category/3-d-...ology-firearms

    Sent from my iPhone using Tapatalk
    I kinda remember an issue with the original Glocks not having any metal in the frame (being completely polymer), and the ATF asking them to embed a metal plate with the serial number under the dust cover.

  5. #15
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    I've always wanted to melt down aluminum cans and forge them into a lower

  6. #16
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    Quote Originally Posted by PaLEOjd View Post
    Polymer lowers are for the M&P15-22, that's where they belong. They have no business on anything else IMO, If yo uwant to se how well they hold up, research the Bushmaster "Carbon" AR, total garbage. There are a few companies still making these polymer lower AR's but that's because people keep buying them because they want to cheapest AR possible and don't really know any better.
    This...
    "Run fast. Shoot straight. Die proud." -Boba Fett

    Trample the weak. Hurdle the dead.

    "Despite what your mamma told you, violence does solve problems." -Ryan Job

  7. #17
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    Double entry
    Last edited by screwedby; 02-03-16 at 12:14. Reason: Smart phone is stupid

  8. #18
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    It's going to happen.

    Look at the handgun world.

    Some minor improvements need to be made...maybe in the composition or maybe beef up the critical areas, but it's coming.

    And it will work. That is what scares the government.

    I look for a change in the rules, maybe serial numbers for uppers. ATF is known for changing the rules in mid stream.

    It is my understanding there is now an 80% handgun frame on the market.

    screwedbygoogle
    original username modified by google
    Last edited by screwedby; 02-03-16 at 12:17.

  9. #19
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    I guess I don't understand why a 3D printed gun would scare the government, when a competent machinist can build a superior weapon right now in their garage.

    Just like I didn't understand people's shock and concern when the guy open sourced the "first 3D printed gun". Any criminal can buy a REAL gun off the street every minute of every day. For way less than making the functional equivalent of a 3D printed liberator pistol.

    What am I missing?


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  10. #20
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    No interest in casting a polymer lower but I wouldn't mind having a mold to start casting lower-shaped food out of it, like chocolate or hard candy.

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