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Montana Gun Possession Laws (2026)

Permitted: Montana has no red-flag law (also called an Extreme Risk Protection Order, or ERPO), and no assault-weapon ban or restriction on magazines; state preemption of local gun laws is strong.

PermittedVerified May 31, 2026

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Official source: dojmt.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Gun Possession in states bordering Montana

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

IdahoInfo
Idaho has no state red-flag law (also called an Extreme Risk Protection Order, or ERPO), no assault-weapon ban, and no firearm registry.
Verified May 31, 2026 · Source: ag.idaho.gov · Full Idaho rule →
North DakotaPermitted
North Dakota has no red-flag law (also called an Extreme Risk Protection Order, or ERPO), and no assault-weapon ban or state-level restriction on magazines.
Verified May 31, 2026 · Source: attorneygeneral.nd.gov · Full North Dakota rule →
South DakotaPermitted
South Dakota has no red-flag law (also called an Extreme Risk Protection Order, or ERPO), and no assault-weapon ban or restriction on magazines.
Verified May 31, 2026 · Source: sdlegislature.gov · Full South Dakota rule →
WyomingPermitted
Wyoming has no red-flag law (also called an Extreme Risk Protection Order, or ERPO) — a 2024 law bars enforcement of red-flag seizure orders — and no assault-weapon ban or limit on magazine capacity.
Verified May 31, 2026 · Source: wyomingdci.wyo.gov · Full Wyoming rule →

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