The towed AH4 howitzer is a Chinese artillery system manufactured by Norinco. Its main characteristic is that it has been designed to be lightweight, which allows greater tactical mobility. The weight of 4,500 kg, compared to a traditional system that can weigh 18,000 kg, allows the system to be airlifted via heavy-lift helicopters like the CH-47 or Mi-26, or transport aircraft like a C-130 or Y-8. Also, as a modern howitzer system, it possesses a range of engagement of up to 40 km using rocket-assisted projectiles.