You are the second person to tell me this.
Basically I can shot 9mm, .22lr, and .40cal with my Sig pistol. But I have to put back the .22lr kit on the gun before transporting or storing it. And not doing so is punishable by up to 2 years in jail on first conviction. Yet this does absolutely nothing to protect anyone from anything and there are absolutely no victims resulting from it.
This is a ridiculous retarded law. And it deserves to be ignored.
Whoever came up with it needs to be used as target practice.