The Bell 406 resulted from the US Army Helicopter Improvement Program (AHIP). Airframes received a upgraded transmission and engine, a four-bladed main rotor and the distinctive Mast-Mounted Sight (MMS) above the rotor system.
The Kiowa Warrior distinguishes from the original AHIP model when carries the weapons pylon mounted on both sides of the aircraft
Retired Kiowa Warrior at the Hellenic Army, 12-Dec-19 : #Kiowa The Hellenic Army Aviation received 70 former US Army Bell OH-58D Kiowa Warrior under a Foreign Military Sales (FMS) program administered by U.S. Army Security Assistance Command (USASAC)
Greece Receives 70 OH-58D and Last Chinook, 21-May-19 : #Kiowa Cargo ship transporting ex US army helicopters arrived to Greece. The Hellenic Army received 70 OH-58D Kiowa Warrior valued €44M and the last of 10 CH-47D Chinook.
US Army OH-58D Kiowa Warrior Final Flight, 19-Sep-17 : The US Army Aviation Development Directorate flew the Army’s final OH-58D Kiowa Warrior flight from Felker Army Airfield at Joint Base Langley-Eustis on September 19, 2017