The L44 120mm tank guns are designed to go with Rheinmetall's Leopard tanks. Most countries operating Rheinmetall tanks also buy Rheinmetall tank guns and munitions. Indonesia is no exception to this rule. Indonesian government owned manufacturer PT Pindad has produced munitions for Rheinmetall combat vehicles under license since 2014.
Leopard tanks with L44 guns sold by Rheinmetall