FPS Layered Weapon????

I have a problem; i am working on a FPS in blender, so far weapon is “mp4” variant. The problem is I managed to do parts of the weapon in different layers. I did this for serveral reasons actualy but long story short. When i have the layers active i only see a white outline of the weapon; is there anything i can do to fix this? Maybe i should just do different models of the gun instead of layers???

Not sure what the issue is, I assume all these parts of the gun are separate objects? If so, I would make sure they were all named appropriately, and them append them into a new blend file. Of try moving them to the same layer.

This is strange let me post a pic. I am not sure whats going on here. I have posted a attached jpg man this is buggin me