i think i may have figured it out...
- 571.030.
1. A person commits the crime of unlawful use of weapons if he or she knowingly:
(1) Carries concealed upon or about his or her person a knife, a firearm, a blackjack or any other weapon readily capable of lethal use; or...
(4) Exhibits, in the presence of one or more persons, any weapon readily capable of lethal use in an angry or threatening manner; or
8) Carries a firearm or any other weapon readily capable of lethal use into any church or place where people have assembled for worship, or into any election precinct on any election day, or into any building owned or occupied by any agency of the federal government, state government, or political subdivision thereof; or...
(10) Carries a firearm, whether loaded or unloaded, or any other weapon readily capable of lethal use into any school, onto any school bus, or onto the premises of any function or activity sponsored or sanctioned by school officials or the district school board.
2. Subdivisions (1), (3), (4), (6), (7), (8), (9) and (10) of subsection 1 of this section shall not apply to or affect any of the following: [law enforcement, military, judges, carry permit holders, etc. This exemption applies only to 571.030, not to 571.020]
so yes ccw in MO does cover carrying of a knife