M777 155mm lightweight towed howitzer

The M777 replaces the L119 105mm light gun and the M198 155mm medium gun in Royal Australian Artillery units.

This equipment is a significant advance in Army’s capabilities and has a much higher level of digital connectivity. This allows more rapid, safe and accurate application of effects across the battlespace. The M777 can link with Australian and coalition networks providing accurate and timely responses to support ground forces.

The M777 provides direct support to combat troops through offensive and defensive fires with conventional and precision-guided projectiles. It can also employ illuminating and smoke projectiles. 

The M777 will be towed behind the Mack gun tractor and the Mack replacement. It can also be lifted by the Army CH-47 Chinook helicopter and carried in the Air Force C-17A Globemaster III and C-130J Hercules aircraft. The M777 is deployable by Navy watercraft and amphibious vessels.

Calibre 155mm
Weight 4100kg

10.7m (deployed)

9.5m (towed)

Rate of fire

2 rounds per minute (sustained)

5 rounds per minute (rapid)

Effective range

24km for conventional rounds

30km for improved rounds