Yes, butterfly knives (balisongs) are legal to own and carry in Missouri under state law, as there are no explicit bans on their possession or use. However, local ordinances in cities like St. Louis or Kansas City may impose restrictions, and concealed carry laws still apply. The Missouri State Highway Patrol has not issued recent guidance, but federal regulations under the Switchblade Knife Act do not classify balisongs as switchblades.
Key Regulations for Butterfly Knives (Balisongs) in Missouri
- No State-Level Ban: Missouri Revised Statutes § 571.020 does not prohibit balisongs, distinguishing them from switchblades or gravity knives.
- Local Ordinances: Municipalities like St. Louis prohibit carrying balisongs in public spaces or schools, with penalties up to $1,000 or 90 days imprisonment.
- Concealed Carry Restrictions: Under § 571.030, carrying a balisong concealed without a permit is illegal if deemed “dangerous and unusual,” though enforcement varies.