Increasing high speed anti-ship threats and intensive use of UAVs urged the US to take new measures. In this context, it was announced that the American Navy could return to the airburst ammunition usage for air defence system.

At a conference held in the USA, an engineer from Northrop Grumman explained that the company is working on an airburst ammunition that can be used on 30mm guns used on ships. It is aimed that the new projectiles, which are stated to have an proximity fuse, especially developing for the use on the close-in weapon systems of the platforms, which built Littoral Combat Ship (LCS) program.

In addition to the Freedom and Independence class ships, the US Navy also uses 30mm Mk44 Bushmaster II guns on Zumwalt and San Antonio class ships.