Are tonfas legal in missouri to have say in your cars trunk?

i am curious if i would get in trouble for having a tonfa in my car? i am also wondering if there would be a difference in legality of the PR-24 (model) of the tonfa aka police baton and a traditional wooden tonfa? if anyone could give me actual refrences to a government website that has something on the matter that would be great. i have searched and not found anything really... thanks for your help