This is how the Nerf Halo MA40 looks straight out of the box.  

Bright white and green body, with really bright orange magazine, barrel, torch, magazine release and fake ejection ports.  The black handgrip, shoulder pad and top ejection port are all black.  They are the only 3 things I won't be painting.

Here are all the parts removed from the main body so they can all be painted seperately.  The green and white part is the battery cover.

And here are the orange parts removed from the top port.

Here are the parts reversed so you can see the many clips that hold them in place.  Word of warning, those clips are quite delicate.  They'll bend slightly, but can just snap off, so be careful using a small screwdriver to pop them out and help them pop back in when all repainted.

The black top with the orange parts removed, shows the safety logos.  I removed them using sandpaper but this left the plastic looking grey.

And here is that area masked off and sprayed black.