Full metal, not really full metal?
 

I've been keen on getting a full metal mp5 to play with. Something solid that (hopefully) won't break easily.
Now on most of these websites that are selling Full Metal MP5's specify a full metal upper receiver. Does that mean the rest of the gun is made of plastic or is it also full metal? Can someone shine some light on this subject for me so I won't be surprised / disappointed when I find out its mostly plastic?

thanks fellas.

The lower receiver, handguard and stock are plastic, just like the real deal.

Cool thanks. Now that I think about it, that makes sense.

They are specifying the upper receiver because that is the clear/tinted part on Cansoft guns.