← Montana knife laws›Switchblade & Automatic Knife Laws
Montana Switchblade & Automatic Knife Laws (2026)
Permitted: Montana bans no knife by type (switchblade ban repealed 2019) and defines a concealed weapon as only a firearm, so automatic knives are legal to own and carry (MCA 45-8-315).
PermittedVerified Jul 7, 2026
Knife laws change at the state line.Track them in the free LawLert iPhone app and get an alert when you cross into a state where they differ. No account.Get the appMontana bans no knife by type (switchblade ban repealed 2019) and defines a concealed weapon as only a firearm, so automatic knives are legal to own and carry (MCA 45-8-315).
Official source: mca.legmt.gov →
General legal information, not legal advice — verify important decisions with a licensed attorney.
Don't get caught off guardCross into a state where this law is different and the free iPhone app tells you what changed, even with the app closed. It also alerts you when a law you track changes where you live. No account.Get the free appTrack this law — get alerted when it changes
We watch the official sources behind Montana knives rules. If a tracked rule changes, you get one short email — never more than one a week. Free, unsubscribe anytime.