The Otobreda 127mm/54Compact (127/54C) gun is a dual purpose naval artillery piece built by the Italian company Oto Melara. It uses the 127mm round which
Zumwalt-class destroyers (unusable; no ammunition) Otobreda127/54Compact and Otobreda127/64: contemporary 127 mm naval gun from Italian manufacturer Oto Melara
Meccanica Bresciana to form Otobreda. The combined entity produces the DARDO CIWS, Otobreda 76 mm and Otobreda127/54Compact naval guns. OTO Melara's land
standard naval gun mounting for Chinese ships Otobreda127/54Compact and Otobreda127/64: contemporary 127 mm naval gun from Italian manufacturer Oto Melara