Missouri has permissive stun gun laws — no permit, no registration, no special restrictions for adults. But every major Missouri campus enforces its own weapons ban. A personal alarm and pepper spray are the practical alternatives for Missouri college students.
What Missouri Law Actually Says
Missouri Revised Statutes § 571.010 permits adults 18+ to possess stun guns without a permit. There are no size or voltage restrictions. The primary restriction is on convicted felons and prohibited locations including school grounds.
Campus Reality
The University of Missouri, Washington University, Missouri State, SLU, and Truman State all prohibit stun guns on campus under their weapons policies.
What to Carry Instead
For Missouri students, pepper spray and a personal alarm cover every situation. Pepper spray is unrestricted in Missouri for adults 18+. The She's Birdie Personal Alarm ($29.99) is unrestricted everywhere. The SABRE Campus Safety Pepper Gel ($11.99) is the top recommendation for off-campus carry.
Always verify your specific campus policy before carrying any self-defense tool on Missouri campus property.
For self-defense tools that are legal on every campus: see our complete dorm safety kit guide and best personal alarms for college students.
Important: Campus policies change. Always verify current pepper spray rules directly with your student's campus police department or housing office before move-in day. State law sets the minimum — individual colleges can be more restrictive.