Control Freaks Use Brian Thompson Murder To Peddle 'Ghost Gun' Bans
More laws couldn’t have stopped the crime and won’t stop people from making their own weapons.

The murder of UnitedHealthcare CEO Brian Thompson has renewed the debate over "ghost guns," according to some news reports. More accurately, the usual control freaks are using the killing as a convenient hook on which to hang their authoritarian arguments. While there's plenty to find horrifying in this crime, that alleged murderer Luigi Mangione made his weapon using a 3D printer isn't one of them, no matter that a few people see in the act an opportunity to advance restrictive legislation.
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"The homemade handgun and suppressor that police say was used in last week's killing of a UnitedHealthcare executive is intensifying the debate over the growing presence of such firearms in the U.S.," Cameron McWhirter, Jacob Gershman, and John West reported for The Wall Street Journal.
"The Maine Gun Safety Coalition is asking state lawmakers to ban ghost guns after an untraceable firearm was used by the alleged UnitedHealthcare CEO shooter," added AnnMarie Hilton of the Maine Morning Star.
Hilton clarified that "firearms known as 'ghost guns' do not have a serial number as they are usually constructed at home with a kit or with the assembly of separate pieces. They could also be made with a 3D printer."
'Ghost Guns': Misunderstood and Resistant to Regulation
Mentions of 3D-printed firearms seem to set people off, as if printers spit out guns like Star Trek replicators. So does the word "kit," creating the impression that people go on Amazon, order packages of gun parts, and assemble working firearms as if they're putting together flat-packed shelving units. I ran into that misconception when I showed a home-built AR-15 to friends. They asked, "So you just put together a kit?" and were astonished to learn the project required drilling and milling in my workshop.
Kits package together some unregulated parts. But the mechanism that makes a gun go "bang" is regulated and must either pass through the same channels as a commercially manufactured firearm or else be constructed from scratch or from unfinished blanks. That's not necessarily difficult, but it means there's really no magic legislative wand that can be waved to make DIY guns disappear.
After the high-profile assassination of a political figure in 2022, Reuters' Ju-min Park and Daniel Leussink reported, "the man suspected of killing former Japanese premier Shinzo Abe with a hand-made gun on Friday could have made the weapon in a day or two after obtaining readily available materials such as wood and metal pipes, analysts say. The attack showed gun violence cannot be totally eliminated even in a country where tough gun laws mean it is nearly unheard of for citizens to buy or own firearms."
The weapon the assassin used in Japan was a crude but effective two-shot firearm that looked more like an old-fashioned zip gun than the 3D-printed pistol used to kill Thompson. But while not pretty, it was just as effective.
In 2019, TheFirearmBlog published a retrospective pointing out that during the zip gun heyday in the 1950s, "a mechanically inclined youngster might upon obtaining ammunition, most often widely available .22 rimfire, find that such rounds will fit into a section of suitably sized steel tubing, often a section of the salvaged car radio antenna. From then on it is a simple matter of fabricating a means of striking the rear of the cartridge while ensuring the entire assembly is held firmly together." The article included photographs of homemade firearms discovered in the tightly controlled confines of prisons, crafted by inmates from found materials including pipes and plumbing fittings.
DIY Guns Have Existed as Long as Firearms
A 2018 Small Arms Survey report on improvised and craft-produced weapons noted that such "weapons have been manufactured for as long as firearms have existed, typically by hand or in small workshops." Among the weapons manufactured by craft producers, the authors noted, are "mortars, recoilless guns, and grenade launchers."
Revisiting the subject last year in the context of Europe, Small Arms Survey noted that evolving technologies make it much easier to share plans for privately manufactured firearms and to create sophisticated devices at home without specialized skills.
"If production technologies continue to improve and proliferate, [privately made firearms] will increasingly erode the effectiveness of export controls and other key elements of national and international small arms control regimes, and may eventually pose an existential threat to these regimes," warned the authors.
The production technologies referenced in the report included 3D printing, as well as CNC machining, in which computer programs guide tools. But at least as important is the internet itself, which allows enthusiasts to share designs, techniques, and experience. That eases the development of plans for sophisticated firearms that are highly resistant to government restrictions.
In September, Lizzie Dearden and Thomas Gibbons-Neff wrote for The New York Times about the worldwide proliferation of designs for the FGC-9, a partially 3D-printed weapon that can "be built entirely from scratch, without commercial gun parts, which are often regulated and tracked by law enforcement agencies internationally."
As one expert told the reporters: "Now you have something that people can make at home with unregulated components. So from a law enforcement perspective, how do you stop that?"
You Can't Stop the Signal
You can't stop that. That's always been the motivation of those who design and build what have variously been called "improvised," "craft-produced," and "privately manufactured" firearms and are now referred to in the U.S. as "ghost guns." People make their own guns because they want them and somebody in power seeks to prevent them from possessing weapons. The result has inevitably been people who arm themselves in defiance of the law, using whatever tools and materials are available.
The murder of Brian Thompson would have been no less horrible if the weapon was a legally purchased firearm, a knife, an incendiary device, a club, or any other of the many means of destruction humans have historically wielded against one another. The fault lies with the criminal, not the tool.
And people, being clever and defiant towards authority, will always gain access to forbidden objects that they want, including weapons. They'll do so even if they have to manufacture them at home.
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But serial numbers are magic runes that stop shooters from casting a shot unless they roll a d20.
Merely rolling it is enough? Or do they need a 20? Will they have a penalty on marksmanship if it's only a 19?
[Redacted by me]
The obvious solution is to just make murder illegal.
As far as I know this guy was not a felon and could have bought a gun legally and ground off the serial number. Lots easier to do than building a gun.
At this point, for an ideologue (or a patsy), what does it matter? The guy was putting extra tool marks on his casings and carrying around his manifesto.
Never let a crisis go to waste.
The public sure does love its moral panic and outrage. Whether it's satanic heavy metal, rapey daycare centers, vodka-soaked tampons, Tide Pods, bump stocks, or ghost guns, holy christ, won't someone think of the children?
Was the supressor also 3d printed? Never see a clear indication it was, just the gun. Buying a suppressor, which also has a serial number, is much more a pain than buying a pistol.
Every report I've seen has stated that both the pistol and the suppressor were homemade.
I don't know if it's been reported elsewhere, but this actually explains the confusion/issue with the failure-to-eject.
Printing pistols, relatively whole or parts, is well documented. Printing suppressors is relatively straightforward. The missing link, the booster or Nielsen device, requires relatively fine-tuned and consistent spring and venting action. An application that thermoplastics specifically do not do.
Has anyone identified what the design is? I assume it's something readily available online.
Yeah, I've got a gun nut friend with a glock .40 and a legal, tax-stamped suppressor and he just runs into a lot of problems when he shoots it. I believe a suppressor on a rifle is slightly easier, but still wants (assuming sem-auto) the gas turned down somewhat to minimize failures.
That's interesting. The gun channels that I've been watching seemed to think it was a commercial suppressor but a homemade gun. But I'm too lazy to dig up the references.
"But the mechanism that makes a gun go "bang" is regulated and must either pass through the same channels as a commercially manufactured firearm or else be constructed from scratch or from unfinished blanks."
My understanding is that the only part under US law that has to be serialized and has to go through the same channels as a commercially manufactured firearm is the frame or receiver. The frame/receiver is a shell that contains the working parts of the action, it is not the part that makes a gun go bang.
That's correct. You can buy bolts, firing pins, trigger assemblies, and barrels all day long from Brownell's. Only the receiver is serialized and regulated.
The part that makes it go bang is the cartridge.
Actually, it would seem that this is a bit up to the manufacturer to declare with the ATF (or other, if you buy guns actually/directly or used from Europe, they'll frequently have the serial number on the slide, barrel, and frame).
Frames were traditionally easiest and most useful thing to serialize, everything else was generally considered a moving and/or replaceable part.
Recently, Sig Sauer switched to making the Fire Control Group (trigger, sear, springs, housing) the serialized part. Other places had done it before, especially places legally selling FCGs with specialized sears, but Sig, winning the military's Modular Handgun System competition is the first to make a/the large commercial switch away from the frame.
My zip gun (which I disassembled and discarded decades ago) was made with a cap pistol and some 1/4-inch ID pipe. It not only fired (most of the time) but ejected the spent cartridge and re-cocked the hammer.
I'm a Mechanical Engineer with a background in 3D modeling and CNC machining. If necessary, I'm quite capable of designing, machining and building a gun from raw materials if I choose to.
"I'm quite capable of designing, machining and building a gun from raw materials if I choose to."
What's the most difficult? I know those who make wrist watches from scratch tell us the spring is the biggest challenge, and a gun has several springs.
What about ammunition? Reason is constantly publishing stories on making guns by one means or another, but nothing about making the ammunition that makes a gun a proper weapon. Is it because ammunition is easier to obtain, more difficult to make, or what?
Gun springs are a lot closer to standard off the shelf stuff than watch springs. I doubt you'd need to fabricate them.
Bullets are easy, cases can be reused many times, powder and primers are trickier but not impossible in a small home operation.
Yeah, this. You can make a gun from scratch, but if it follows a basic existing design (ie, a 1911 model) then you can buy off-the-shelf mainsprings and recoil springs.
The American left does not want gun control.
The American left wants gun confiscation.
Yep and all those good, law abiding criminals will just come right on down to the collection point and turn their guns in like the upstanding citizens they are.
FYI, if Mangione's experience is anything to judge by, it's that a 3d printed gun is the least reliable fucking thing on the planet. The state should demand that the ONLY legal firearm is a ghost gun. Imagine how many lives they could save.
OMG it was a ghosty!!! So what. Are the cops afraid that he bought it from some nefarious black market dealer who ran out of guns that actually work right and they won't ever find out who that is? Probably a safe bet if this punk had access to a 3D squirter, we likely know who made it. No trace required. Besides there is no data that traces actually help stop crime other than returning the gun to the person it was stolen from 5 or 6 years ago or the trooper who left it in the restroom of a Stuckey's, again.
Now every cool kid is going to want one. Are they white?
It's the same old BS. As-if someone who is going to murder is going to hesitate because gun banning exists. The only people who will loose their guns are those who obey the law in the first place.
"often a section of the salvaged car radio antenna?"
C'mon, man. We got the antennas by "salvaging" them from cars on the street by bending them 90 degrees. They would snap off slicker than you can imagine.
We only stopped making zip guns when we had to start putting serial numbers on them. It was too hard to engrave the antennas.
Arguing to outlaw guns because some people commit murder with them is analogous to arguing to outlaw cars because some people drive drunk. Prohibition does not and never has worked.
Or do they think no one since the dawn of humankind was ever murdered before firearms were invented? Julius Caesar will be so glad to hear that.
“DEMOCRATS both Celebrate AND Peddle Gun Control” - FTFY
Reason you lying sacks of DNC Marxist shit. Real shame we’ll have to line you up along the wall one day, despite your protestations of ‘dah middle!’
Prosecutors are going to have a hard time proving the untracable Ghost Gun the killer had in his back was his, right? A 2019 DOJ reported noted 43% of firearms fatalities are “cleared” (arrest & prosecution) while 19% of non-fatal shootings are cleared. Traceable guns don’t much help solve crimes or prevent them.
Another DOJ report found that few federal/state prisoners jailed for crimes involving gun use did not see a gun recovered. Again, no utility of serial numbers.
Federal law only requires the maker of a gun to permanently stamp a serial number on it to sell it legally. Finding a gun marked BOB12345 by a dead body doesn’t help much…
An increasing number of police departments don't even bother with traces, they've found them so useless.
The actual goal here is to make home manufacture of guns a crime, so that they have some basis to go after anybody who disseminates information on how to build a gun. So that anybody who decided to build one anyway would have to figure out how to do it from scratch...
The gun control movement is terrified by home gun manufacture, because as it becomes easier and easier, their dreams of disarming the otherwise law abiding evaporate. They don't care about the criminals, the crimes they commit with guns are actually treasured as an excuse to disarm the law abiding.
It's the law abiding they want disarmed, because so long as America has an armed population, there are lines they dare not cross, and they really want to cross them.
NThe “ghost gun” in the CEO assassination is a no-issue. The alleged shooter had a clean record with no previously reported criminal or psychological issues that would have prevented him from walking into any gun store in America and walking out with a pistol. As for the silencer, the same thing applies. He could fill out a form, pay his $200 tax stamp and order one - legally - on the internet.