Only "Class E" firearms are themselves registered, to my knowledge. A holder of a less permissive license can purchase very similar firearms, so long as they ar

Only "Class E" firearms are themselves registered, to my knowledge. A holder of a less permissive license can purchase very similar firearms, so long as they are modified to be in compliance (e.g., have a thumb-hole stock instead of a traditional pistol grip) and they only use 7-round magazines.