42w is nice - but G&G is better - own both + SRC (deffo not as good)
ICS is a close second to G&G M4's - slightly faster rof on ICS out of box
but G&G are perhaps built a bit better plus lots of styles to choose from - some with ris etc....
ICS do them but usually the cheaper starter guns are just like the 42's or G&G carbines - no rails