Commissioned Officer Ranks Rank Abbrev. Grade GEN O10 No equivalent rank Lieutenant General LG O9 No equivalent rank Major General MG O8 No equivalent rank Brigadier General BG O7 No equivalent rank Colonel COL O6 Lt. Colonel LTC O5 Major MAJ O4 Captain CPT O3 1st Lieutenant 1LT O2 2nd Lieutenant 2LT O1 General Insignia Cadet Insignia Enlisted Ranks Rank Abbrev. Grade Insignia Cadet Insignia Sergeant Major of the Army SMA E9 Command Sergeant Major CSM E9 Sergeant Major SGM E9 First Sergeant 1SG E8 Master Sergeant MSG E8 Sergeant First Class SFC E7 Staff Sergeant SSG E6 Sergeant SGT E5 Specialist / Corporal SPC / CPL E4 Private First Class PFC E3 Private PV2 E2 Private PVT E1 No Equivalent Rank (none) None