Stun gun laws in Missouri

We didn't find any Missouri law restricting the sale or shipping of stun guns.

What we searched

RSMo 571.010, 571.020, 571.030, 571.060: https://revisor.mo.gov/main/OneSection.aspx?section=571.010 (and =571.020, =571.030, =571.060)
RSMo chapter 571 index: https://revisor.mo.gov/main/OneChapter.aspx?chapter=571

No mention of stun/electric weapons in ch. 571 definitions, prohibited weapons, carry or minor-sale sections.