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New California ghost gun lawsuit takes aim at company that sells 3-D printer filament
latimes.com ^ | October 10, 2026 | Sonja Sharp

Posted on 10/10/2026 9:33:02 AM PDT by lowbridge

San Diego County jumped into California’s sprawling ghost gun fight this week, suing a 3-D printing filament manufacturer it says hocks material for homespun firearms in violation of state law.

Working with the Giffords Law Center, the county counsel sued manufacturer Polymaker, alleging the company made a “strategic business choice” to market and sell 3-D printer filament to Californians for the express purpose of building illegal weapons. The polymer filament is sold in spools that feed into 3-D printers, allowing the devices to form designs created by their owners.

“Unlike ghost guns assembled from commercially sold unfinished parts, 3D printed ghost guns can be produced from plastic filament using consumer-grade equipment,” the suit said. “Upon acquiring a 3D printer, a fully functional, untraceable firearm can be printed and assembled by anyone in less than nine hours.”

This spring, the San Diego Police Department’s Ghost Gun Team recovered spools of the material from the home workshop of a 16-year-old would-be school shooter, along with printed guns and firearm parts they believe he intended to sell — evidence, the suit said, of the manufacturer’s harm to the state.

Polymaker did not respond to requests for comment.

The spool suit is the latest in a coordinated effort by California’s municipalities and the state attorney general’s office to throttle the bootleg gun industry by stanching the flow of its precursor components.

In February, the San Francisco city attorney’s office partnered with the California attorney general to sue the online library Gatalog, whose popular digital firearm manufacturing codes can produce more than 150 different 3-D-printed guns and accessories.

“Widely available consumer-grade 3D printers capable of printing firearm parts, frames, receivers, and accessories now start at about $200 and are compact enough to fit on a small table,” the complaint alleged.

(Excerpt) Read more at latimes.com ...


TOPICS: Constitution/Conservatism; Crime/Corruption; News/Current Events; US: California
KEYWORDS: banglist; california

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1 posted on 10/10/2026 9:33:02 AM PDT by lowbridge
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To: lowbridge

Related:

Federal Court Holds Delaware “Ghost Gun” Possession and Home-Manufacturing Bans Unconstitutional

https://www.firearmspolicy.org/federal-court-holds-delaware-ghost-gun-possession-and-home-manufacturing-bans-unconstitutional


2 posted on 10/10/2026 9:33:41 AM PDT by lowbridge ("Let’s check with Senator Schumer before we run it" - NY Times Editor)
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To: lowbridge

Sue the steel manufacturers because guns can be made from metal.


3 posted on 10/10/2026 9:48:45 AM PDT by BipolarBob
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To: lowbridge
". . .to market and sell 3-D printer filament to Californians for the express purpose of building illegal weapons."

This will be an interesting case. The "express purpose" may not hold up since the filament can also be purposed for printing other objects.

4 posted on 10/10/2026 9:49:38 AM PDT by omni-scientist
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To: lowbridge

A5re they going after Home Depot and Lowes for selling steel pipe too??


5 posted on 10/10/2026 9:51:02 AM PDT by eyeamok
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To: eyeamok

Yep
Can be used to make missiles


6 posted on 10/10/2026 9:55:38 AM PDT by TStro (Come and take it!)
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To: lowbridge

Why don’t they just ban lathes, drill presses, milling machines, hack saws, files, steel. I’m sure that duct tape should be banned too.


7 posted on 10/10/2026 9:57:57 AM PDT by NewHampshireDuo ( )
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To: TStro

Why can’t lawfare be trained in the other direction? Conspiring to infringe on the 2nd Amendment rights of all citizens? Someone burn down the Giffords Center (and their ilk) with legal fees, please.


8 posted on 10/10/2026 9:58:53 AM PDT by Wally_Kalbacken
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To: NewHampshireDuo

No need. In a few years there will be no industry in California.


9 posted on 10/10/2026 10:02:23 AM PDT by null and void (Do we vote for the people who want to hurt us, or vote for the people who don’t want to stop them?)
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To: TStro

I have a book in front of me put out by the US Army called “unconventional warfare devices and techniques” that gives you all kinds of recipes for incendiary devices, $5 at the book store


10 posted on 10/10/2026 10:03:26 AM PDT by eyeamok
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To: lowbridge

Then outlaw writing tools; pens, pencils, chalk, etc.. They can be used to write bad things, including calls to violence!

How absurd.


11 posted on 10/10/2026 10:08:37 AM PDT by fuzzylogic (welfare state = sharing of poor moral choices among everybody)
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To: NewHampshireDuo

Saltpeter, sulphuric, and charcoal. Put Kingsford out of business!


12 posted on 10/10/2026 10:09:18 AM PDT by ProtectOurFreedom
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To: NewHampshireDuo

Why don’t they just ban lathes, drill presses, milling machines, hack saws, files, steel. I’m sure that duct tape should be banned too.


Such were not available for individuals in the Soviet Union.

Hunting/military style knives were required to have serial numbers and to be registered.

https://www.ammoland.com/2018/07/soviet-union-knife-registration/


13 posted on 10/10/2026 10:10:41 AM PDT by marktwain (----------------------)
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To: BipolarBob

What about suing all the drug paraphernalia MFGs? Never will see that from California......


14 posted on 10/10/2026 10:15:25 AM PDT by Lockbox (politicians, they all seemed like game show host to me.... Sting)
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To: NewHampshireDuo

Someone proposed a regulation requiring a mufacruring license to own or purchase machine tools a while back. Haven’t heard anything about it for a while.


15 posted on 10/10/2026 10:20:48 AM PDT by BudgieRamone (Everybody loves a bonk on the head)
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To: BudgieRamone

*manufacturing


16 posted on 10/10/2026 10:21:45 AM PDT by BudgieRamone (Everybody loves a bonk on the head)
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To: lowbridge

So, people are making gun barrels on 3D printers with plastic filament?

Somehow I don’t think so.


17 posted on 10/10/2026 10:26:17 AM PDT by Disambiguator
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To: lowbridge

If it is a 3-D PRINTER would not that be protected under the 1st Amendment of FREEDOM OF THE PRESS?


18 posted on 10/10/2026 10:42:52 AM PDT by Ruy Dias de Bivar (REOPEN THE CLOSED MENTAL HOSPITALS! Closed in the 1970s, murders by crazies sky rocketed!)
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To: lowbridge

Polymaker should change the label to “gun parts and personal intimacy accessories”. California would be good with that.


19 posted on 10/10/2026 10:43:08 AM PDT by EandH Dad (sleeping giants wake up REALLY grumpy)
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To: lowbridge

So I sell paper and ink to somebody who publishes pro-Antifa propaganda and now I’m supposed to be liable to a merchant whose business Antifa burns down.


20 posted on 10/10/2026 10:50:57 AM PDT by libstripper
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