The gun uses an automatic loading system where 66 127mm rounds of various kinds can be stored ready-to-fire in three loader drums (each holding 22 rounds). The barrel is water-cooled.
This firearm's automatic loading system allows for the storage of up to 66 different types of 127mm ammunition in three rotating drums, each containing 22 rounds. The barrel is cooled by water, indicating a focus on reliability and durability.