Michigan allows most knives for adult ownership and open carry statewide, with key restrictions on concealed carry and specific types. Laws hinge on intent, blade length over 3 inches, and vehicle rules under MCL 750.226 and 750.227.
Core Michigan Statutes
MCL 750.226 prohibits carrying a dagger, dirk, stiletto, or knife with a blade over 3 inches if intended for unlawful use against another— a felony punishable by up to 5 years in prison or $2,500 fine. MCL 750.227 bans concealed carry or vehicle possession of daggers, dirks, stilettos, and double-edged non-folding stabbing instruments, treating vehicles as concealed regardless of accessibility.
Switchblades became legal in 2017 after repeal of MCL 750.226a; no state ban on automatics exists now.
Open vs. Concealed Carry
Open carry of any legal knife is permitted without length limits, absent unlawful intent. Folding pocket knives under 3 inches carry concealed freely, presumed non-threatening.
Fixed blades over 3 inches or prohibited types risk felony charges if concealed or in vehicles; trunk storage may comply for transport.
Prohibited Locations and Minors
Schools, courthouses, and private property ban knives per MCL 750.237a and postings. Minors face stricter possession rules; sales to under-18s prohibited.
Local ordinances in Detroit or Lansing may add limits, overriding state preemption minimally.​
Knife Types Table
| Knife Type | Open Carry | Concealed Carry (Adults) |
|---|---|---|
| Pocket/folding <3″ | Legal | Legal |
| Folding >3″ | Legal | Risky if intent shown |
| Fixed blade | Legal | Generally no |
| Switchblade/automatic | Legal | Legal if not prohibited type |
| Dagger/dir/stiletto | Legal* | Illegal |
*Open legal absent intent; vehicle ban applies.​
Penalties and Defenses
Violations are felonies: up to 5 years/$2,500; intent must be proven beyond lawful utility. Self-defense justifies possession under stand-your-ground provisions if reasonable.
No major 2026 changes noted; preemption limits local overreach.​
Best Practices
Carry openly or pocket small folders; avoid concealment of larger blades. Document lawful purpose if questioned. Check Michigan Legislature site for updates and consult locals.​
Responsible ownership upholds rights without legal exposure.
SOURCES :
- https://knifeinformer.com/state-knife-laws/michigan/
- https://urbanedc.com/blogs/analog-field-guide/michigan-knife-laws
