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MK 110 57 mm Gun

The 57mm MK 110 Gun Mount is a multi-purpose, medium caliber gun. The MK 110 Gun Mount can fire salvos at up to 220 rounds per minutes, and has a range of nine miles. The MK 110 Gun Mount delivers high rates of fire with extreme accuracy against surface, airborne and shore-based threats. The primary mission of the MK 110 Gun Mount is to provide engagement of known surface threats during combat operations in a theater area of operation.
The MK 110 gun developed by BAE Bofors, Sweden, as the 57mm MK3, was competitively selected for installation on the United States Coast Guard (USCG) cutters and Littoral Combat System (LCS) class ships. It is designed to engage surface, air and missile targets. The current version of the 57mm gun was designed in 1995 and introduced into service in Sweden on their Visby class corvette in 2000. The MK 110 Mod 0 Gun is assembled at the BAE Systems facility in Louisville, Kentucky.

The gun mount includes a 120 round automatic loader drum. The maximum firing rate is 220 rounds per minute. The gun is normally operated by remote control from the fire control system (FCS) by one operator but can be controlled locally in the gun mount. Additional rounds can be accomplished by the full crew (mount captain and two designated ammunition loaders), all of which are stationed below deck.

The MK 110 gun is installed aboard LCS and USCG WMSL class ships.
Point Of Contact
Office of Corporate Communication (00D)
Naval Sea Systems Command
Washington Navy Yard, D.C. 20376
General Characteristics, MK 110
Primary Function: Fully-automatic, naval gun mount.
Date Deployed: 2008 in both LCS and USCG WMSL classes
Range: 17,000 meters (9.1 nautical miles) with conventional ammunition.
Type Fire: 220 rounds per minute automatic, conventional ammunition.
Magazine Capacity: 120 rounds conventional.
Caliber: 57 mm 70 caliber MK 38 Mod 0 Barrel, barrel length of 3,990 mm (57 mm x 70)
Guidance System: Guidance System: MK 110 Gun Mount is remotely fired from the MK 160 Gun Computer System on USCG WMSL class and uses various Gun Computer systems on LCS class ships.
Platforms: MK 110 (57mm) all LCS and USCG WMSLs class (1 gun mount per ship)
Last Update: 16 January 2019