(See) Littoral Combat Ships (LCS)

[Nightwatch]

First Gun Mission Module Installed Aboard LCS 2

The Navy installed the second gun mission module (GMM) aboard USS Independence (LCS 2) July 28 in Norfolk, Va. The GMM is an integral part of Littoral Combat Ship (LCS) Surface Warfare (SUW) Mission Package used for counter-piracy, maritime interdiction and security missions. GMM consists of two MK 46 turret mounted, axis-stabilized, 30mm chain gun systems that can fire up to 200 rounds per minute.

[...]

The gun can be fired in single, 5-round bursts and unlimited length bursts. Each GMM has a magazine capacity of more than 800 rounds and fires U.S. Navy 30 X 173mm ammunition. The weapon system is designed to counter small boat threats.

The first Engineering Development Model (EMD) was subsequently installed on LCS 1 and used during Freedom's recent deployment to the U.S. Southern Command's Area of Operations where LCS 1 successfully conducted narcotics trafficking interdiction missions.

Freedom also conducted testing of the GMM recently during the annual Rim of the Pacific Exercise near the Hawaiian islands.

The team also installed the first EDM of the launcher for the Surface-to-Surface Missile Module (SSMM) in the forward centerline weapon zone. LCS 2 is built with a center-line weapon zone and port and starboard weapon zones.

Current planning for SUW employment has the 30mm GMM carried in the port and starboard weapon zones and the SSMM carried in the centerline weapon zone.

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