§ 750.231bSale and safety inspection; persons exempt

Sec. 231b.
    Sections 223 and 228 do not apply to a duly authorized police or correctional agency of the
 United States or of the state or any subdivision thereof, nor to the army, air force, navy or
 marine corps of the United States, nor to organizations authorized by law to purchase or
 receive weapons from the United States or from this state, nor to the national guard, armed
 forces reserves or other duly authorized military organizations, nor to a member of such
 agencies or organizations for weapons used by him for the purposes of such agencies or
 organizations, nor to a person holding a license to carry a pistol concealed upon his person
 issued by another state, nor to the regular and ordinary transportation of pistols as merchandise
 by an authorized agent of a person licensed to manufacture firearms.