Glock magazine capacity laws by state (2026)

The standard Glock 17 magazine holds 17 rounds and the Glock 19 magazine holds 15, and in most of the United States both are legal to buy, own and carry. In a minority of states they are not. Because we ship magazines, we track these rules closely. This page is our reading of the law as of September 2026, written in plain English; it is not legal advice, the courts keep changing the picture, and you should confirm your own state's rule with the attorney general's office or a local attorney before you order or travel.

How the limits work

A capacity law usually does three things: bans the sale of magazines above a number, bans possession of them, or both, and sometimes bans bringing them into the state. Most laws grandfather magazines owned before the effective date, some require registration or removal, and a few states allow possession but not sale. The number is what matters for a Glock owner: a 10-round limit rules out every standard Glock magazine except the slimline and subcompact ones; a 15-round limit allows the Glock 19 magazine and the 10mm and .45 magazines but not the 17-round magazine.

States with a 10-round limit

As of September 2026, California, Connecticut, Hawaii (for pistol magazines), Maryland, Massachusetts, New Jersey, New York, Rhode Island and Washington cap magazines at 10 rounds, along with the District of Columbia. Oregon's Measure 114 sets a 10-round limit and has been through years of litigation; check its current status before ordering. Washington bans sale and import but not possession of magazines owned before its 2022 law. Maryland bans sale but not possession. Several of these laws were upheld by federal appeals courts in 2024 and 2025 and the Supreme Court declined to take the cases, so they are in force.

States with a 15-round limit

Colorado caps magazines at 15 rounds, which allows a Glock 19 magazine and bars the 17-round magazine; a 2025 law also adds a permit requirement for many semi-automatic firearms with detachable magazines from August 2026. Illinois caps handgun magazines at 15 rounds and long-gun magazines at 10 under its 2023 law, upheld on appeal in 2024. Vermont caps handgun magazines at 15 and long-gun magazines at 10. Delaware caps magazines at 17 rounds, which allows every standard Glock pistol magazine and bars the 19, 24 and 33-round versions.

Grandfathering and registration

Most limit states let owners keep magazines bought before the law took effect, and some require proof of when they were bought, which is hard to produce for a magazine with no serial number. Connecticut and New York required registration or removal of pre-ban magazines; California banned possession outright in 2016, though enforcement was frozen for years by the courts. If you move into a limit state with standard magazines, check whether the state allows you to bring them, requires you to register them or requires you to sell or store them out of state; moving companies and airlines will not sort this out for you.

Cities and counties

A handful of local governments add rules where the state does not: Chicago and Cook County in Illinois, several Colorado cities, and some Virginia and New Mexico localities have tried. State preemption laws block most local limits in the rest of the country. If you live in a city with its own ordinance, the city rule applies inside it even when the state has no limit.

Everywhere else: no limit

The remaining states have no magazine capacity limit as of September 2026. Some of those legislatures debate one most years, Virginia and New Mexico among them, so a state with no limit today may have one next session. Our city pages carry the current summary for each state we cover.

Travel

Magazine laws follow the magazine, not the owner. A 17-round Glock magazine that is legal at home is illegal to possess in a 10-round state, and driving through one with it in the glove box is possession. The federal safe-passage law covers a firearm being transported unloaded and locked between two places where it is legal, and it has not reliably protected travelers stopped with magazines in New York and New Jersey. The practical rule: carry compliant magazines when you cross into a limit state, and leave the others at home.

Hunting limits

Separately from general limits, many states cap magazine capacity for hunting with a semi-automatic firearm, commonly at five or ten rounds, and a few require a plug or a fixed magazine. These apply during the hunt regardless of the state's general rule. Check the hunting regulations for your season.

What we ship

We ship standard-capacity Glock magazines and extended baseplates to states that allow them, and the factory 10-round or 15-round versions to states that cap capacity. The checkout checks your shipping address and tells you which version you are getting before payment. We do not ship magazines to a state or city that bans them, and we do not ship extended baseplates that would put a magazine over a local limit. If your address is in a state whose law is in litigation, we follow the rule in force on the day you order.

Sources and updates

This page is updated when a law changes or a court rules. Our sources are the state statutes, attorney general guidance and the court decisions themselves, listed on our sources page. For the fit rules that decide which magazine you need, see the compatibility chart, and for extended plates see extensions and baseplates. Browse Glock magazines, and find your state on our city pages.

General information, not legal advice. Current as of September 2026. Laws change; check the official source before you act.