of comparable role, performance and era 4.5 inch Mark 8 naval gun: contemporary standard naval gun for British ships 5"/54 caliber Mark 45 gun: contemporary standard naval gun for US ships AK-130: contemporary 130 mm twin standard naval gun mounting for Russian ships H/PJ-38 130mm naval gun : contemporary 130 mm standard naval gun mounting for Chinese ships Otobreda 127/54 Compact and Otobreda 127/64: contemporary 127 mm naval gun from Italian manufacturer Oto Melara External links NavWeaps French Naval Guns Le canon de 100mm (Netmarine.net) 100 100 mm artillery Military equipment introduced in the 1950s