Warrant Officers rank badges

All badges were worn on the lower forearm. The gun badge pointed forward – the illustrations show the badge for the left sleeve

Rank Appointment  
Warrant Officer Class I – WOI Regimental Sergeant Major – RSM WO1 RSM
  Master Gunner Class I – MGI WO1 MG1
  Master Gunner Class II – MGII WO1 MG2
  Bandmaster – BM WO1 Bandmaster
Warrant Officer Class II – WOII Master Gunner Class III – MGIII WO2 MG3
  Regimental Quartermaster Sergeant-RQMS WO2
  Battery Sergeant Major – BSM WO2
Warrant Officer Class III-WOIII Troop Sergeant Major – TSM WO3
The Royal Artillery 1939-45