The Glock 18 is one of the most famous—and misunderstood—handguns in the world. It looks like a standard Glock 17, but flip a small selector switch on the slide, and suddenly it fires at a blistering 1,200 rounds per minute. That’s submachine gun territory in a handgun-sized package.
But before you start searching “where to buy a Glock 18,” there’s a harsh reality: for civilians, the Glock 18 is virtually off-limits.
Let’s break down why it’s so restricted, what makes it unique, and the very few legal paths to ownership.
Key Takeaways
- The Glock 18 is a machine gun under U.S. federal law.
- Civilian ownership is illegal unless the firearm was registered before May 19, 1986.
- Only law enforcement, military, or SOT licensees can legally possess one.
- Any attempt to convert a semi-auto Glock into a full-auto is a federal crime.
- Legal ownership requires FFL/SOT licensing, strict ATF compliance, and usually six-figure prices.
What Is the Glock 18?
The Glock 18 is the select-fire variant of the Glock 17. Developed in the mid-1980s for military and law enforcement use, it can fire in both semi-automatic and full-automatic modes using a selector switch located on the slide.
When switched to full-auto, it can empty a 34-round magazine in under two seconds.
Key Features
| Feature | Description |
|---|---|
| Firing Modes | Semi-auto and full-auto (up to 1,200 RPM) |
| Selector Switch | Located on the slide’s left side |
| Frame & Build | Polymer frame, steel slide—just like other Glock models |
| Safety System | Glock’s signature Safe Action System with three internal safeties |
| Variants | The Glock 18C adds an integrated compensator to reduce muzzle rise |
This design makes the Glock 18 an incredibly controllable machine pistol, especially when used by trained professionals.
Why You Can’t Buy a Glock 18 Like a Regular Handgun
So, can you own a Glock 18 if you’re a U.S. civilian? Short answer: almost certainly not.
The Firearm Owners’ Protection Act (FOPA) of 1986 made it illegal for civilians to own or possess machine guns manufactured after May 19, 1986. Since the Glock 18 was introduced after that date, no new Glock 18 pistols can ever be transferred to civilians.
The Law That Killed Civilian Full-Auto Ownership
Under the National Firearms Act (NFA) and FOPA of 1986, any firearm capable of firing more than one round per trigger pull is legally defined as a machine gun.
That means the Glock 18, just like an M16 or MP5, falls squarely under that category.
Here’s what that means for you:
- Civilians cannot legally buy or register a Glock 18 made after May 19, 1986.
- Only law enforcement personnel, the military, and licensed dealers/manufacturers can possess them.
- Even if you found one for sale, owning it without proper licensing would be a federal felony under 18 U.S.C. § 922(o).
Can You Legally Own a Glock 18? Technically, Yes — But…
Here’s where it gets interesting. There are legal Glock 18s in civilian hands—but they’re extremely rare and astronomically expensive.
1. Pre-1986 Registered Machine Guns
To legally own a Glock 18, it must have been registered with the ATF before May 19, 1986. Those guns are part of what’s called the “transferable machine gun registry.”
Because Glock introduced the G18 after that date, there are virtually no transferable Glock 18s. A few early test models or dealer samples might exist, but if one were transferable, it would easily command six figures at auction.
2. Become a Special Occupational Tax (SOT) Holder
If you’re a manufacturer or dealer with a Class 3 FFL (Federal Firearms License) and pay the Special Occupational Tax (SOT), you can legally possess post-1986 machine guns for government sales, demos, or research.
This is the most realistic legal path to owning a Glock 18, but it’s strictly business, not personal ownership. Lose your SOT status, and you lose the gun.
How to Legally Own a Glock 18 (Step-by-Step Overview)
For 99.9% of civilians, you can’t. But for collectors, manufacturers, or law enforcement agencies, here’s the only legal process recognized by the ATF:
- Obtain a Type 07 or 10 FFL license (for manufacturing or importing).
- Register as a Special Occupational Taxpayer (SOT) under Class 2 or 3.
- Submit ATF Form 2 to register the machine gun.
- Maintain compliance with all NFA regulations, record-keeping, and inspection requirements.
- Never transfer a post-1986 Glock 18 to a non-SOT civilian.
For everyone else? You’re limited to semi-auto models like the Glock 17, 19, or 34—and perhaps a Glock binary trigger (in states where legal) if you’re craving faster shooting.
Why the Glock 18 Was Restricted
The restriction isn’t about the Glock brand; it’s about the rate of fire. A pistol capable of dumping a full magazine in under two seconds is classified as a machine gun, regardless of make or model.
Safety and Control Concerns
Firing 1,200 rounds per minute may sound fun, but in untrained hands, it’s wildly uncontrollable. Even with the compensated Glock 18C, muzzle rise and recoil make precision nearly impossible during sustained bursts.
Law Enforcement Use Only
Glock markets the G18 exclusively to law enforcement and military customers. Some agencies use it for VIP protection, special operations, or training roles where burst fire is advantageous.
Glock 18 vs. Glock 17: What’s the Difference?
| Feature | Glock 17 | Glock 18 |
|---|---|---|
| Firing Mode | Semi-auto only | Select-fire (semi/full auto) |
| Selector Switch | None | Slide-mounted toggle |
| Use Case | Civilian, LE, military | LE/military only |
| Availability | Widely available | Restricted |
| Rate of Fire | 350–400 RPM (semi) | ~1,200 RPM (full auto) |
While they look nearly identical externally, the internal fire control components are entirely different, and modifying a Glock 17 into a Glock 18 (using an auto sear or “Glock switch”) is 100% illegal under federal law.
The Glock 18C: A Full-Auto With a Twist
The Glock 18C variant features compensator ports cut into the barrel and slide, which reduce muzzle climb during full-auto fire. This design makes it more controllable during bursts and is favored by law enforcement units in confined spaces.
Even so, the 18C remains NFA-restricted and off-limits to civilians.
The Bottom Line: Can You Own a Glock 18?
Unless you’re a law enforcement agency, military unit, or FFL/SOT manufacturer, the answer is no; you cannot legally buy or own a Glock 18 in the United States.
But understanding why is part of being an informed gun owner.
If you’re interested in NFA firearms, there are still legal alternatives:
- Pre-1986 transferable machine guns (like older M16s or MAC-10s)
- Pistol-caliber carbines with binary triggers
- Semi-auto Glock models that deliver similar reliability without the legal risk
The Glock 18 remains a fascinating firearm; technically brilliant, historically important, and tightly controlled. It’s a reminder of how U.S. gun law draws a hard line between semi-auto and full-auto, and how that line shapes what you can (and can’t) own.