Enlisted Warrant Officer Commissioned Officer Private First Class E-3 Private PFC Warrant Officer, One W-1 Mister WO1 Second Lieutenant O-1 Lieutenant 2LT Specialist E-4 Specialist SPC Not use Chief Warrant Officer, Two W-2 Mister CW2 First Lieutenant O-2 Lieutenant 1LT Corporal E-4 Corporal CPL Chief Warrant Officer, Three W-3 Mister CW3 Captain O-3 Captain CPT Sergeant E-5 Sergeant SGT Chief Warrant Officer, Four W-4 Mister CW4 Major O-4 Major MAJ Staff Sergeant E-6 Sergeant SSG Chief Warrant Officer, Five W-5 Mister CW5 Lieutenant Colonel O-5 Colonel LTC Sergeant First Class E-7 Sergeant SFC     Colonel O-6 Colonel COL Master Sergeant E-8 Sergeant MSG     Brigadier General O-7 General BG First Sergeant E-8 First Sergeant 1SG     Major General O-8 General MG Sergeant Major E-9 Sergeant Major SGM         Command Sergeant Major E-9 Sergeant Major CSM