The 5-inch /54-caliber lightweight gun is a U.S. naval artillery gun mount consisting of a 5 in L54 Mark 19 gun on the Mark 45 mount. The later 62-calibre-long version consists of a longer-barrel L62
5-inch/62-caliber Mark 45 Mod 4, in flat-panel gun turret, test firing on USS Forrest Sherman
Mod 2
Mod 4
A Mod 2 gun aboard the Australian Anzac-class frigate HMAS Arunta
AK-130
Videos
The AK-130 is a Russian designed automatic dual barrel naval cannon with a caliber of 130 millimetres, capable of firing 10-40 rounds per minute.
AK-130 Naval guns mounted on the destroyer Nastoychiviy.