The Hisar project has major Turkish defense firms as stakeholders, namely Aselsan and Roketsan, who partnered in the development of the air defense system.
The development of long-range missile defense system SIPER is still in progress and it is expected to be ready by 2023.
Earlier this year in March, the Hisar-O+ medium-range air defense system completed a test-fire, which was the longest range and the highest altitude test conducted in the country to date.