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Thread: Poison SuMac -- 3D Printed MAC Lower?

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    Poison SuMac -- 3D Printed MAC Lower?

    I downloaded the 3D models... I haven't made this yet (I do have a 3D printer as well as an FFL 07/3), but it's interesting!

    "The Poison SuMac is a 3D printed lower for the Mac-11 platform that uses 71 round drum magazines from the Finnish Suomi submachinegun. Inspired by the Lage manufacturing Mac-11 uppers, the SuMac aims to bring standard capacity magazines to the people. Features include a modular design with numerous stock, brace, and QD sling rear attachments modules, optional spring-tensioned magwell for maximum magazine retention, and a 1/4"-20 threaded rod spine for enhanced durability."

    https://www.youtube.com/watch?v=V_8a2QVyQyI

    Now hosting: www.MAC-11.info

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    Besides the 3D-printed parts, here's the additional hardware list:
    .
    [-+ Gun Parts +-]
    .
    1x Mac-11 complete upper including
    1x AR-15 Fire Control Group
    1x AR Grip
    1x Suomi drum or coffin mag

    .
    [-+ Hardware +-]
    .
    1x 5/16" x 2" Bolt
    2x 1/4"-20 Nylocks
    2x 1/4"-20 Acorn nuts
    2x 1/4"x10-3/4" All thread rod
    2x 3mm x 32mm Pin
    1x 3mm x 30mm Pin
    3x 5mm Heat set
    2x 5mm x 25mm Socket head bolt
    1x 5mm x 20mm Socket head bolt
    1x 40mm section 0.048" music wire

    .
    [-+ Tensioned Foregrip +-]
    .
    2x - 3mm x 30mm Socket head bolt
    2x - 3mm Nylocks
    1x - 30mm Section AK recoil spring.
    Now hosting: www.MAC-11.info

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    I'd like lowers milled from aluminum. Quote for 2 please. I will need to dual wield.

    Last edited by strobro32; 11-17-2021 at 03:15 PM.

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    Whooooa. They used the standard feeding position but moved the grip back. Clever! I never thought of that. Has anyone ever chopped an actual mac in this fashion?

    Where did he get a right side charging upper? Is that a cz scorpion tailhook brace? Didn't even know this stuff existed.
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    Very awesome... if I was just starting and didn’t already have a shit ton of MAC stuff I’d be all over those!

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    Does it work with MPA parts or does it need the VMAC upper?

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    Quote Originally Posted by Doobis View Post
    Does it work with MPA parts or does it need the VMAC upper?
    It appears to be designed for any M11/9 standard upper.
    Now hosting: www.MAC-11.info

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    Kinda like the MPA 971, revisited with 3D print flexibility.

    MHO, YMMV, etc.
    Last edited by SecondAmend; 11-18-2021 at 01:55 PM.

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    It would be interesting to adapt the design into select-fire/full-auto (of course under an FFL 07/03).
    Now hosting: www.MAC-11.info

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    Quote Originally Posted by Concorde View Post
    It appears to be designed for any M11/9 standard upper.
    It is designed for the Vmac9, and I have read there are dimensional differences. So said the late great Vegas SMG. Man we are gonna miss him.

    Any ideas how they engage the bolt with an ar trigger group? I am thinking it's time to get a 3d printer.
    Last edited by Gaujo; 11-19-2021 at 04:10 PM.
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    Also, you have to pay $60 and join "Legio" to get those files? Not cool.

    Answered my own question:
    https://odysee.com/@AreWeCoolYet:7/Poison_SuMac:c

    Update: Instructions say Cobray 11/9 uppers are kosher.
    Last edited by Gaujo; 11-19-2021 at 04:30 PM.
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    I call total BS on this.
    You guys can believe what you like and feels good of course.
    3D Printed upper or lower in a real SMG, that will test shoot 10K of real centerfire pistol ammunition? Sure, that's same as fjb passing a cognitive test from a real medical Dr..
    If you believe that, like to sell you a bridge in Brooklyn.

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    Who said 10k?
    Check out my Youtube channel

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    What I'd like to see is someone line up 30-50 rounds on the plate of a printer and print a magazine around them so that we don't have to load magazines by hand. Put some compressed air in the bottom for a feed spring and let them rip.

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    Quote Originally Posted by Gaujo View Post
    Who said 10k?
    I did. IF it's so "Kosher" .... pick anything reasonable to help assure it
    Won't blow-up in your face.... 2K, 7K, 9.5K, 15K, 20K, E=MC square, etc. ya get the idea.

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    I'm not defending the durability of the design or 3d prints in general, but I will say my thought would be a failure with a design that uses a mac upper is more likely to be a crack, not an explosion of any kind, and if it were an explosion it would be at the magwell which in this case is not in your hand. I do have a buddy printing my parts as we speak however ;-). This group has a printed scorpion design which an SOT ran for over 1k, for what that's worth.
    https://odysee.com/@AreWeCoolYet:7/1...Scorpion-EVO:a

    Lastly, this group designed a 3d printed 33 round suomi stick mag that I am hoping is single stack feed. Uses a glock 18 spring. I have one of these getting printed too and plan on testing it with a max-31.
    Last edited by Gaujo; 11-20-2021 at 03:48 PM.
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    Sounds good, keep it Kosher!

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    Quote Originally Posted by Gaujo View Post
    Also, you have to pay $60 and join "Legio" to get those files? Not cool.

    Answered my own question:
    https://odysee.com/@AreWeCoolYet:7/Poison_SuMac:c

    Update: Instructions say Cobray 11/9 uppers are kosher.
    https://odysee.com/@AreWeCoolYet:7

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    Quote Originally Posted by Galil#1 View Post
    Sounds good, keep it Kosher!
    Tell you what. I'm in Houston too. You provide 10k rounds, I'll shoot em!
    Last edited by Gaujo; 11-20-2021 at 03:50 PM.
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    Quote Originally Posted by Gaujo View Post
    Tell you what. I'm in Houston too. You provide 10k rounds, I'll shoot em!

    I bet you will friend ... best I seen for new American brass RN 115/124gr is $17.99 for a box of 50 at Academy.
    Last edited by Concorde; 11-21-2021 at 04:23 PM. Reason: Inappropriate, edited by moderator

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