It provides power to open and close the trails, raise and lower the trail wheels, and raise and lower the firing platform. However, there is no power traverse or elevation. Large wheels, spades and firing platform provide excellent mobility and stability in soft or sandy terrain. The gun can be transported in an aircraft such as the C-130. Hydraulic power assistance makes it possible to bring the gun into or out of action in less than 2 minutes.
Loading is facilitated by a semi-automatic breech and the loading tray with pneumatic rammer.
The breech is of the screw type which provides reliable sealing under all conditions. However, the G5 can operate with minimum of two people when all of the powered systems are working. The G-5 MkIII includes 35 reliability modifications and performance improvements.