U.S. territory · GU

Guam gun laws

Here's a plain-language look at Guam's own firearm laws, topic by topic. Federal law applies here too, so it's worth reading the federal page alongside this one. City and county rules aren't covered, and some places have stricter ones.

At a glance: Permit needed to carry concealed

Recently changed or in flux

Recently changedP.L. 38-031 (July 31, 2025) amended ch. 60 (for example, permitting silencers); its full effect hasn't been reviewed.

Permit to purchase#

Handguns: Yes. You need a Guam Firearms Identification Card from the Guam Police Department to own, possess or acquire any firearm (10 GCA 60106).
Long guns: The same Firearms ID Card is required.

Registration#

Yes. Every firearm must be registered with the Guam Police Department (GPD) within 3 working days of acquiring it (10 GCA 60110). Firearms brought from off-island need the Customs declaration form plus a GPD armory safety inspection.

Carrying a handgun#

Permitless carry: No.
Concealed carry permit: Shall-issue concealed firearms license (10 GCA 60109.1) for Guam residents who are U.S. citizens or permanent residents, ages 21 and older.
Open carry: Only with a Guam Firearms ID card. Ch. 60 lets cardholders carry a firearm 'concealed or otherwise' as stated on the card, and carrying concealed needs a separate concealed firearms license (10 GCA 60103, 60106(a), 60109.1). Carry isn't allowed in places such as jails, courthouses, the Legislature, school zones and posted private property (60109.1(l)).
Reciprocity: No reciprocity identified; people passing through Guam need the Chief of Police's permission to possess a firearm (60127).

“Assault weapon” rules#

No 'assault weapon' ban identified, but machine guns, rifles with barrels under 16 in., and shotguns with barrels under 18 in. are prohibited (10 GCA 60102).

Magazine limits#

None in Guam's firearms law (10 GCA ch. 60 has no magazine capacity limit).

Waiting period#

No fixed waiting period identified. The Firearms ID card is issued within 30 days (60 if concealed carry is requested) after an FBI fingerprint check.

Background checks and private sales#

Yes, in effect: the buyer needs a Firearms ID card, and every transfer requires a new registration (10 GCA 60110 and following).

Red flag (ERPO) law#

Unverified

Not identified (unverified).

Unverified: We found no red flag law in Guam's firearms chapter, but we haven't been able to confirm from an official source that none exists elsewhere in Guam law. We haven't confirmed this against the statute yet, so check the official source.

Suppressors, SBRs and SBSs#

Suppressors: Permitted since P.L. 38-031 (July 31, 2025) if federal and local requirements are met; you need an endorsement on your card (10 GCA 60103, 60106(b)).
Short-barreled rifles and shotguns: Prohibited (barrel-length limits in 10 GCA 60102).

About the October 2026 federal NFA change

On October 9, 2026, ATF said it will stop enforcing the NFA's approval and registration requirements for suppressors, short-barreled rifles and shotguns, and AOWs. Guam's own restrictions on short-barreled rifles and shotguns still apply. ATF's federal non-enforcement policy doesn't change territorial law. Where Guam allows these items only if federal requirements are met, it isn't settled how territorial law treats an item that is no longer federally registered. Check with territorial authorities before relying on ATF's change.

Federal NFA details · ATF's NFA FAQ explained

Ammunition#

Importing, making or selling 'restricted bullets' is a felony unless the Chief of Police authorizes it (10 GCA 60121.1), and ammunition dealers must register (60115).

Minimum ages#

Handgun purchase: 18 for a Firearms ID card (federal law sets 21 for handgun sales by dealers); 21 for a silencer from a dealer.
Long gun purchase: 18
Notes: See 10 GCA 60108(b)(5).

Shipping and buying online#

Firearms must ship to a Guam-registered dealer who holds an FFL, and the buyer must already have a Firearms ID card and register the firearm within 3 working days. SBRs, SBSs and machine guns can't be sold to Guam. For ammunition, 'restricted bullets' are banned. USPS won't carry ammunition, and UPS limited-quantity ground service doesn't reach Guam, so ammunition moves as hazmat freight to a registered dealer. This territory is treated as a 'State' under the federal Gun Control Act (18 U.S.C. 921(a)(2)); see the federal Territories section.

Buying a firearm online means it ships to a licensed dealer, who completes the transfer. Find one near you in the Dealer Finder. Retailers make the final call on what they'll ship, so always check their policy too.

Pending legislation and litigation#

Bills, ballot measures, rules and court cases that could change the rules in Guam. We check this list every week; last scan October 24, 2026. See everything we're tracking.

Nothing on our watch list here right now. That usually means no major bill or court case is close to changing Guam's gun laws at the moment. We'll add items here as soon as our weekly scan finds them.

Sources and official links#

Guam Code 10 GCA ch. 60 (Firearms), current through 2025 · Officialhttps://col.guamcourts.gov/sites/default/files/10gc060.pdf
Guam Police Department - FAQs (Firearms ID, registration) · Officialhttps://gpd.guam.gov/faqs/

Guam entry last reviewed October 17, 2026. Official territorial sites can move or change; if a link stops working, search the agency's site for the same title.

Notes that apply everywhere

Federal NFA change (suppressors, SBRs, SBSs, AOWs)

Congress set the federal NFA making and transfer tax to $0 for suppressors, short-barreled rifles (SBRs), short-barreled shotguns (SBSs) and 'any other weapons' effective January 1, 2026 (One Big Beautiful Bill Act, 2025). After a federal district court ruling (Silencer Shop Foundation v. ATF, N.D. Tex., Aug. 5, 2026), ATF published an open letter from Director Robert Cekada, a press release, a fact sheet and an FAQ saying that as of October 9, 2026 it will not enforce the NFA's approval, registration, tax-stamp and related requirements for those four items, for everyone. Machine guns and destructive devices remain fully regulated. The Gun Control Act still applies, including dealer background checks, the prohibited-person rules, and an approved Form 20 to take an SBR or SBS across state lines, and dealers still may not sell in violation of state or local law. ATF says this does not override state or local law. A state that bans these items still bans them. Many state laws make these items legal only if they are 'registered' or 'lawful under federal law', and how those state laws apply to unregistered items is currently unclear. ATF also warns that enforcement could resume if the law, the ruling or DOJ policy changes. Keep this note in mind whenever you read a state's suppressor, SBR or SBS entry.

atf.gov ↗atf.gov ↗atf.gov ↗atf.gov ↗govinfo.gov ↗

U.S. Supreme Court 'assault weapon' cases

The Supreme Court granted review (June 30, 2026) in Viramontes v. Cook County (No. 25-238, a Cook County, IL ordinance) and Grant v. Higgins (No. 25-566, Connecticut). The question is whether the Second Amendment protects possession of AR-15-platform rifles. The cases are scheduled for oral argument on December 2, 2026 (not yet argued as of October 15, 2026), and a decision is expected by mid-2027. Magazine-limit petitions (for example Duncan v. Bonta from CA and NAGR v. Lamont from CT) and New Jersey's petition (No. 26-452) were pending as of mid-October 2026. Every state 'assault weapon' and magazine entry could change as a result.

supremecourt.gov ↗supremecourt.gov ↗supremecourt.gov ↗supremecourt.gov ↗supremecourt.gov ↗

Wolford v. Lopez (U.S. Supreme Court, June 25, 2026)

The Court struck down Hawaii's rule that licensed carriers may not carry on private property open to the public without the owner's express permission. Similar 'default no-carry on private property' rules in some other states (for example CA, NY, NJ and MD) may be affected. This guide hasn't verified how each state has responded.

supremecourt.gov ↗scotusblog.com ↗

Federal minimum ages

Under federal law, licensed dealers may sell handguns only to buyers 21 and older, and long guns only to buyers 18 and older. Federal courts have split on whether the 18-20 handgun-sale restriction is constitutional, and this guide doesn't try to resolve that litigation. State rules on how old minors must be to possess guns aren't fully covered here.

Local ordinances

Many cities and counties (for example Chicago and Cook County, IL; Denver and Boulder, CO; Philadelphia, PA; and New York City) have rules stricter than state law. This guide covers state-level law only.

All states, DC and territories · Federal law

Disclaimer

The firearm law information in Firearms Almanac's Laws & Regulations guide (federal, state and territory) is provided for general informational purposes only and is not legal advice. It is not a substitute for advice from a licensed attorney in your jurisdiction. Firearm laws change frequently, differ by city and county, and are often affected by court decisions that can take effect with little notice. We try to keep this guide accurate and cite official sources, but we make no guarantee that any entry is complete, current, or correct, and we are not responsible for actions taken based on it. Before buying, selling, carrying, transporting, or shipping any firearm, ammunition, magazine, or accessory, check the current law with the official federal, state or territory source linked on each page and, where appropriate, a qualified attorney. Retailers listed on this site set their own shipping and sales policies and are responsible for complying with the law. Each entry shows the date it was last checked. See also our site Disclaimer.