The 127mm mk 45 is a naval gun turret of us origin. It was developed in the 1960's by united defense as a lighter alternative to the earlier mk 42 turret. The mk 45 is the smallest 127mm gun turret in the world and can be considered a direct competitor to the italian 127mm compatto. The mk 45 is a lighter and easier to install design while the compatto has a higher rate of fire and has more ammunition ready to fire. Both guns use the same us standard 127mm ammunition

The kit consists of  15 parts