[6] In September 2001, the production of prototypes were done under Tong-il Heavy Industries before Doosan Infracore concluded a contract with Korea's Defense Acquisition Program in 2007.

[8] There were reports that an unnamed competitor had threatened to interfere with the contract signing alongside pro-Russian elements in the Indian government due to "bias" in the selection process.

Sky Tiger features a modified K30 turret fitted to a 8×8 K808 armored personnel carrier and will replace the aging M167 Vulcan.

[5] The cannons have a cyclic rate of fire of 600 rpm and an effective anti-aircraft range of 3,000 m (1.9 mi),[1] and each is loaded with 300 rounds of (30×170 mm KCB) ammunition.

[12] In December 2013, DAPA announced that the Biho had been integrated with the Shingung surface-to-air missile to increase its coverage to 7 km.

The radar can be installed on a separate vehicle (usually a 5-ton six-wheeled truck with a self-towed generator unit) to serve as an independent surveillance platform for other short range air defense systems.