10 min read

The 3D Printed Glock: Facts vs Misconceptions

There’s a new controversy surrounding gun rights every week. “Ghost guns” and 3D printing are frequently involved. The level of understanding the average person possesses, however, is almost zero.
The 3D Printed Glock: Facts vs Misconceptions

It feels like there’s a new controversy surrounding gun rights every week. “Ghost guns” and 3D printing are frequently involved. People love to be vocal on Twitter, but in reality, the level of understanding the average person possesses — whether pro-gun, anti-gun, brovet, cop, mom demanding action, journalist, or self-proclaimed expert — is almost zero.

We’re going to look specifically at one firearm in this article. That firearm is the Glock 17. We’ll look at the Glock 17 because it’s ubiquitous amongst gun owners, gun debates, and is also a commonly 3D printed gun. We’ll look at how these guns are obtained in white markets, secondary or gray markets, black markets, and through 3D printing (which can serve in any of those markets).

We’ll break up some of the common misunderstandings about 3D printed guns. We’ll also look at what it takes to produce a 3D printed Glock. And who knows? Maybe we’ll even help some folks build one.

What is a Glock 17?

The Glock 17 is a massively popular handgun. Introduced in 1982, over 5 million Glock 17 pistols have been manufactured. One of the first handguns to feature a polymer (plastic) frame, the Glock is widely used by both civilians and law enforcement. The gun itself is a 9mm semi-automatic and features a ~4.5” barrel and 17 round magazine from the factory. Glocks are known for their reliability and ease of use.

A Glock 17 Gen4 Handgun

Ways to Get a Glock 17

White Market: Licensed Dealers, ATF Paperwork

Walk into any gun store in America, and there’s a good chance you’ll see at least one Glock 17 on the shelf, ready to be purchased. So how does one purchase a Glock 17? Well, it starts with some paperwork.

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A buyer must complete at the gun store’s counter an ATF Form 4473 (firearm transaction record) which records the customer’s name, address, physical attributes, racial and ethnic information, and asks a series of questions about the buyer’s criminal history (if any) and immigration status. Using this information, the gun store submits the customer’s information to the government for a background check. The customer’s background check must return ‘approved’ before the customer takes possession of any firearm. (In some states, a permit or license to buy precludes the requirement for a background check).

This ATF Form 4473 also lists the firearm’s make, model, importer, caliber, and serial number (among other things). The ATF Form 4473 is retained after the purchase by the gun store for a legal minimum of 20 years. This record is accessible to law enforcement at any time without requiring a warrant or notification to the customer.

Information about you and your firearm is required for the ATF Form 4473

Your State May Vary

The requirements to buy are stricter in some states than in others. But the above outlines the minimum possible requirements for a gun store to make a legal sale in compliance with federal law. And after your waiting period, after paying sales tax, after paying for your own background check, and after giving all your information to the government, you can walk away as the proud new owner of a Glock 17.

Free Men Don’t Ask Permission

But what if you don’t want to fill out a permission slip to record every gun purchase? What if you don’t want your private information sitting in a de facto firearms registry? Maybe it’s no one’s business what you defend yourself or your home with. What if the entire political class — and I can’t stress this enough — can go fuck themselves?

Secondary Market: Private Firearm Sales

One can always buy a Glock 17 via private sale from another person in order to avoid the government’s hassle. There’s no paperwork required (in most states), and no sales tax or background check fees either. The practice of private firearm sales is legal in many places and circumstances and illegal in some others. To ‘gun people’, buying and selling guns via private sale is a common and normative behavior.

Nonetheless, there are still a few drawbacks and risks to a private sale. The Glock you’re buying is second-hand, so you don’t know its history. And it’s not a ghost gun because it has a serial number (which means there’s a record of it somewhere). There’s a risk you’re inheriting a ‘dirty’ gun that someone is unloading on you (knowingly or unknowingly). You could also be buying a broken gun. And if you don’t know who you’re doing business with, the other party may or may not be of legitimate circumstance. It’s entirely possible your counterpart is an illegal possessor, or worse, an undercover cop.

Most of the time a private sale goes smoothly. But the practice itself is frequently under attack from anti-gun politicians, and the law regarding private sales is always changing. Social media tools like private Facebook groups help keep the market facilitated, but these groups are always being shut down and popping back up somewhere else. It’s a hassle to keep up. There are alternatives like GunBroker or Armslist, but you’re involving at least one intermediary at that point.

Black Market: Unlawful Private Firearm Sales

A private firearm sale — which is generally legal — becomes illegal when one or more party involved is legally prohibited from possessing, selling, buying, or transferring a firearm. This may be due to previous criminal history relating to an involved party, or private sales may just be illegal in the specific jurisdiction in which the sale is occurring. These illegal sales are ‘black market’ sales, and there’s no use spending much time on them.

But if ‘hell is other people’, wouldn’t it be nice to just build your own gun, free of government interference, and without the potential risks of a private sale?

Enter: the 3D Printed Glock

Note: I’m not going to discuss how to start 3D printing in this article. But if you're interested, here's a separate article that can help you get started:

Get Started 3D Printing Guns
Start 3D printing firearms in the comfort of your own home with this easy guide. Everything you need to know to get started.
How To: Get Started 3D Printing Guns

3D printed guns have been the subject of immense controversy for years. You can thank Cody Wilson and his team at Defense Distributed for laying much of the groundwork that today’s community relies on. Wilson and Defense Distributed were (and still are) at the heart of the legal battle surrounding 3D gun designs and print files being published on the internet.

Wilson’s “Liberator” pistol was the first widely available 3D printed gun, and indisputably changed the course of distributed manufacturing, as well as the struggle surrounding gun rights.

Let’s start by clearing up the biggest misconception about 3D printed guns.

Don’t Those Blow Up?

Take a look:

At the time of this writing, a fully 3D printed gun like the Liberator is only good for a shot or two. That’s because it’s an older design and uses plastic parts almost entirely. The barrel is even plastic. That’s not going to hold up very long, of course. It’s more of a proof of concept, and in fairness, wasn’t designed to last.

Changing gears to a more modern approach, the 3D printed Glock 17 is a legitimate handgun that uses the same metal parts as a “real” one. It relies on factory metal components for most of the design. In fact, the “3D printed” Glock 17 uses the exact same metal parts, springs, slide, barrel, and locking block the factory Glock does.

The only thing 3D printed about the 3D printed Glock 17 is the frame, which houses the trigger, rail sections, and magazine. The pressure-bearing parts and rails are made from aluminum or steel. This design holds up well, and many of the test guns have hundreds or thousands of rounds through them.

The FMDA 17.2. The red portion is 3D printed, the rest is stock factory parts

The biggest risk to 3D printed Glocks is (ironically) heat. The frame can be deformed by heat that results from excessive rapid fire. This means that after about 80 rounds of mag dumping (firing as fast as possible) the frame will start to melt. That’s game over. For normal use, however, a properly-produced handgun is fine for a few thousand rounds.

In reality, a modern 3D printer is able to manufacture something pretty close to a factory Glock 17. These 3D printed Glocks are not serialized, and because they come to life in a garage or workshop, are unknown to authorities. An added benefit is the low cost of production. It’s about $3 in material to produce a Glock 17 frame from PLA filament. The printer itself usually sells for ~$200.

In most places in the U.S., yes. The only part of a regular Glock 17 the ATF cares about is the frame. The frame is where the serial number is located. And, as the ATF sees it, the frame is the “firearm”. All the other parts — the barrel, slide, striker assembly, ejector, etc — are not legally considered firearms and are not regulated. They can be shipped straight to your house or purchased over the counter with cash.

The frame that you are printing is probably legal too. Home gunsmithing is generally legal, and the ability to produce your own firearms is historically protected by the second amendment. The only time you need a license is if you’re making these commercially for profit or exporting them. Building one for yourself is fine.

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Note: This isn’t legal advice. These laws are changing all the time, and it’s entirely possible that local or state laws in your jurisdiction are stricter than federal laws. If you choose to care about gun laws, then choose to look up what’s relevant for you and your area.

Shopping List for a 3D Printed Glock

You’ll need the following items to produce a 3D printed Glock 17. You will also need a few common hand tools (like a set of needle-nose pliers, a drill, Allen keys) that you may or may not already have on hand.

You’ll also need a set of rails. These are metal parts that mate the 3D printed frame to the metal slide assembly. You can make these yourself by following the build instructions included with the gun files of the F17, or you can buy them from someone else who fabricated them. Popular sources for rails include Aves Rails and Riptide Rails.

How to Assemble Your 3D Printed Glock

Thanks to the devs at Deterrence Dispensed, the following assembly videos are available. After the Glock frame comes off your printer, you’ll need to clean it up and drop in the parts kit. The following videos show you how. If you’re well-versed in firearms, it’ll take about an hour to build the gun once the frame prints. If you’re new, give yourself a few hours.

Glock Build Instruction Videos

Considerations

Anything can be misused. I’d be lying if I told you there isn’t the potential for misuse here. But even so, there’s not a strong argument against 3D printed guns. Criminals could print a Glock. Sure. But it would be easier and faster to just buy one illegally on the black or gray market.

However, even if 3D printing were the fastest and easiest way to obtain a Glock, it still wouldn’t make a ban justifiable or enforceable. The right to self-defense is inherent to all living things, and a government that seeks to weaken this right is no friend of anyone.

Your Takeaway

You can see by now that producing a 3D printed Glock is a realistic goal for those inclined to do so. But it’s not as simple as “just hitting the print button,” like many politicians and news outlets report. It takes all day to print the frame, and then you have to build the gun from there using parts kits. Producing a functional 3D printed firearm takes a lot more effort than many anti-gun pundits will tell you, but you’re also getting a much higher quality firearm than many people think.

The idea that a criminal can just quickly print off a big scary gun and start shooting people isn’t realistic. There are easier ways to get guns than 3D printing. And the fact that you can get a gun illegally both faster and cheaper than you could via 3D printing means that these guns are almost never used in violent crimes.

3D printing is a legitimate undertaking that a free person should be able to pursue without a challenge. The government’s ham-fisted attempts to prevent this from developing have actually led to an explosion in both the number of people involved in the movement and the quality of the gun files being developed.

You can’t ban printers, and computer code is widely protected as free speech (because it is). Distributed manufacturing and 3D printing is a strong example of modern technological and private sector innovation making slow-moving, sloppily executed government controls obsolete.

Pass whatever gun laws you want. They don’t really matter anymore.

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