The "Blue Arrow"-21 missile system （BA 21 missile ）is a heavy-duty anti-tank missile, which can be used airborne or vehicle-mounted. The "Blue Arrow"-21 missile has a range of about 18 kilometers and uses laser semi-active guidance. It hits with great precision. It can be locked and then launched, and then left alone, or it can be launched first and then locked. It is very flexible to use, and its performance is also the most elastic for heavy duty.
