Glock 18 Explained: Why You Can’t Buy One in 2026

Last updated October 24th 2026

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The Glock 18 is a select-fire version of the Glock 17 that can fire fully automatic at roughly 1,100 to 1,200 rounds per minute. Under federal law it is a machine gun, and because it was made after May 19, 1986, a private citizen in the United States can’t legally buy one. Glock sells it only to military, police and government agencies.

That answer hasn’t changed in 40 years, but a lot around it changed in the last 12 months. The tax and registration rules for suppressors and short-barreled rifles fell away in 2026, Glock redesigned its whole lineup to fight illegal “switches,” and California banned dealer sales of convertible pistols. People are asking whether any of that opens a door to the Glock 18. It doesn’t, and this page explains exactly why, with the statutes linked so you can read them yourself.

Table of Contents

Glock 18 at a Glance

	Glock 18 / 18C
Type	Select-fire machine pistol (semi-auto or full-auto)
Caliber	9x19mm
Based on	Glock 17 full-size frame and slide length
Introduced	1986
Developed for	EKO Cobra, Austria’s police counter-terrorism unit
Rate of fire	About 1,100 to 1,200 rounds per minute
Fire selector	Lever on the left rear of the slide
Common magazine	33 rounds
Who can buy one	Military, law enforcement, government agencies and certain licensed dealers
Civilian legal in the US?	No

What Is the Glock 18?

The Glock 18 started as a request from EKO Cobra, Austria’s police counter-terrorism unit, which wanted a pistol that could fire full auto for close-quarters work. Glock built it in 1986 on the Glock 17, and also used it to test Glock parts under far harder use than a semi-auto ever sees. From a few feet away it looks almost identical to a Glock 17. The giveaway is a small lever on the left rear of the slide. In the top position it fires semi-automatic, one shot per pull. In the bottom position it keeps firing as long as the trigger is held.

At 1,100 to 1,200 rounds per minute it empties a 17-round magazine in under a second, which is why it’s most often shown with the 33-round magazine and sometimes a shoulder stock. Early guns were ported to fight muzzle rise. The later Glock 18C has a keyhole cut in the front of the slide over four compensator cuts in the barrel, which vent gas upward to hold the muzzle down.

Glock also made sure the 18 can’t be built from Glock 17 parts. Its slide, frame and certain fire-control parts don’t interchange with other Glock models, so you can’t make one by swapping a few pieces into a G17.

Most Americans have seen a Glock 18 on a screen rather than on a range. It’s the default pistol in Counter-Strike, where it has a three-round burst mode. The real gun has no burst setting. It’s semi or full auto.

Why Full Auto From a Pistol Is So Hard to Control

A Glock 17 weighs about 25 ounces with an empty magazine. A 9mm round pushes it back and up every time it fires, and with a semi-auto you get a split second between shots to bring the sights back down. At 1,100 to 1,200 rounds per minute the Glock 18 fires roughly 20 rounds a second. That leaves no time to recover, so each shot starts from wherever the last one left the muzzle, and the gun walks up and to the side.

Everything about the Glock 18 package is aimed at that problem. The 18C’s compensator vents gas upward to push the muzzle down. The shoulder stock gives a third point of contact, so the shooter can hold the gun against the body rather than with the wrists alone. And the long 33-round magazine is there because a standard magazine is gone before most shooters can react. Even with all of that, short controlled bursts are how trained users get hits.

That’s also why Austria fields it with specialist users such as EKO Cobra while the Glock 17 stays the standard service pistol, and why the military and police world mostly turned to submachine guns and short carbines for full-auto work. A heavier gun with a real stock and a longer sight radius is simply easier to keep on target.

Glock 18 vs Glock 17 vs a “Switched” Glock

	Glock 17	Glock 18	Glock with a switch
Fire modes	Semi-auto only	Semi and full auto, factory selector	Full auto, aftermarket part
Made by	Glock	Glock	Illegal aftermarket maker
Parts built for automatic fire	No	Yes, its own slide, frame and fire-control parts	No
Legal for a civilian to own	Yes, in most states	No	No, the switch alone is a machine gun
Federal maximum penalty if possessed illegally	Not applicable	Up to 10 years	Up to 10 years

The difference that matters most is the middle row. A Glock 18 was engineered by Glock to run full auto. A switched Glock is a semi-automatic pistol pushed into a job it was never designed for, by a part that was never tested with it. Legally they land in the same place, and mechanically the switched gun is the worse of the two by a long way.

Can You Legally Buy a Glock 18?

No, not as a private citizen. Three federal laws stack up to keep it out of your hands:

• The National Firearms Act of 1934 defines a machine gun as any weapon that shoots, or can readily be restored to shoot, more than one shot automatically with a single pull of the trigger (26 U.S.C. 5845(b)). The Glock 18 fits that definition.
• The Firearm Owners Protection Act of 1986 added 18 U.S.C. 922(o), known as the Hughes Amendment. It makes it unlawful to transfer or possess a machine gun, except for government agencies and for machine guns lawfully possessed before the law took effect on May 19, 1986.
• The penalty for violating 922(o) is up to 10 years in federal prison under 18 U.S.C. 924(a)(2), plus fines.

That pre-1986 exception is the only door civilians have to any machine gun, and it doesn’t help with this one. The Glock 18 only went into production in 1986, so there are essentially no Glock 18s on the frozen registry of transferable machine guns. Glock sells it only to military, law enforcement and government customers. The same ban is why you can’t buy a full-auto AA-12 shotgun either. If someone offers you a “transferable Glock 18,” treat it as a red flag and have an NFA-specialist dealer check the registration before any money moves.

Who Can Actually Own a Glock 18?

Who	Can they have one?	How
Military and government agencies	Yes	Exempt from 922(o) as government users
Police departments	Yes	Bought by the agency for official use
Licensed manufacturers and importers (with special occupational tax)	Yes	For their licensed business
Licensed dealers (with special occupational tax)	Only as a dealer sample	Needs a request letter from a government agency that wants a demonstration, under 27 CFR 479.105
Private citizens	No	No transferable Glock 18s to buy

The dealer route is the one people misunderstand. A dealer with the right license and tax status can get a post-1986 machine gun as a “sales sample” to show to police agencies, but it stays a dealer sample. It can’t be sold to a civilian customer, and it doesn’t become a personal gun when the dealer gets out of the business.

What the 2026 NFA Changes Mean for the Glock 18: Nothing

This is the question we get most now. In 2025 Congress cut the $200 NFA tax on suppressors, short-barreled rifles, short-barreled shotguns and “any other weapons” to $0. On October 9, 2026, ATF said it would stop requiring approval and registration for those items for everyone. We covered it in detail in our ATF NFA guidance explainer.

Machine guns were left out on purpose. ATF’s open letter says that because Congress kept the $200 tax on them, “all NFA provisions still apply to machineguns and destructive devices.” And even if the NFA disappeared entirely, the Glock 18 would still be illegal for civilians, because the ban lives in a different law, 922(o) of the Gun Control Act, which none of the 2026 changes touched.

Item	Federal registration in late 2026	Can a civilian buy one?
Suppressor	Not enforced by ATF since Oct. 9, 2026	Yes, with a background check (state law permitting)
Short-barreled rifle	Not enforced by ATF since Oct. 9, 2026	Yes, as ATF finalizes dealer rules (state law permitting)
Pre-1986 transferable machine gun	Full NFA: Form 4, $200 tax, registration	Yes, where state law allows, at collector prices
Glock 18 (made 1986 or later)	Full NFA, plus the 922(o) ban	No

Glock Switches: The Illegal Shortcut

A Glock “switch,” also called an auto sear or conversion device, is a small part that fits on the back of a Glock slide and makes a semi-auto Glock fire full auto. Federal law treats the switch itself as a machine gun. The definition in 26 U.S.C. 5845(b) covers “any part designed and intended solely and exclusively” for converting a weapon into a machine gun. So owning just the part, with no gun attached, carries the same 10-year maximum as owning a Glock 18.

They aren’t legal to buy, 3D print, or import “as a novelty,” and the cheap ones sold online from overseas are exactly what federal prosecutors charge. A converted Glock is also nothing like a Glock 18. It has no factory-designed selector, no parts built for automatic fire, and nothing to keep it controllable.

How Glock Responded: V Series and Gen6

The switch problem changed Glock’s product line. In October 2025, with lawsuits from Minnesota and New Jersey pending and California’s AB 1127 signed, Glock stopped production of more than 30 models and replaced most of its double-stack line with the “V Series.” The V Series uses a redesigned trigger bar, revised slide rails, a narrower firing pin channel and a modified rear plate, all meant to make switches harder to install. The Gen6 pistols that followed in January 2026 carry the same changes.

California’s AB 1127 took effect July 1, 2026. It bars licensed dealers from selling new pistols that can be readily converted into machine guns, which in practice targets older-pattern Glocks. It doesn’t ban owning one or reselling a used one. The federal government sued to block it, and a judge declined to put it on hold in August. Our California Glock ban coverage has the details.

The Closest Legal Thing: Glock 17 Gen6 and Glock 17 V

If what you actually want is the Glock 18’s size, feel and 9mm firepower, the gun it was built from is legal to buy in most states. The Glock 17 takes the same 33-round magazine, and it’s the pistol Glock built its police business on. The two versions on shelves now are the Gen6 and the V Series, and these are the live prices across the 200+ retailers we track:

Our Glock 17 Gen6 review covers what changed in the new generation, and our best Glock pistols guide compares the whole lineup. If it’s automatic fire itself you’re curious about, plenty of ranges rent pre-1986 transferable machine guns to try, and our history of machine guns and how they changed combat covers where it all came from.

Frequently Asked Questions