I dont know i dont have the m4 i got the m16a3 too, but i ant really tell 100% there seems to be metal on one side of the receiver and nhlon plastic on the other side:confused: even if i knock or touch i cant really tell the diffrence lol

Most of the ones that Ken at 007 sells are a metal/plastic body mix. With the upper being metal. The exeception is the 2 starter kits that have "light" in there title. My review was on a "light" model. Now to tell the difference. Well all of the hardware is metal on them. And what you might be referring to as plastic might be the carry handle. My carry handle is mostly plastic with metal sight, thumb screws and a "blued" bar that holds the handle to the body. If this doesn't help, or if you aren't sure as to the exact part being metal , i can help you out. Also expect another update soon, its been under the knife, internally and externally.

The nylon fiber upper receivers look and feel very very very very veryyyyy close to the metal ones. They feel cold and are very tough. They're not metal, but aren't crappy plastic either.

yeah i figured there friken solid i actually stomped on mine to figure out and still dint crack or even budege its a pretty solid rifle

as for your help my carry handle is FULL metal

I've completely disassembled mine, and when I had the upper receiver separate, it sounds like some form of metal (it pings when tapped with an allen wrench). I'm 99% sure it's metal. Keep in mind that may vary depending where you bought it from.

If you bought it from Shootsoft, Buy Airsoft, CAS or Velocity Arms, then the upper receiver is Nylon Fibre. Even says so on their websites. Like I said, the nylon fibre isn't cheap plastic. They are extremely tough and feel cold to the touch. I've gotten my hands on both G&Gs from Mach1/007 and Buy Airsoft/Shootsoft. They are very similar, except the upper receivers.

I'm looking at the GR16 Light Combo as a starter gun. What's your opinion on how noob friendly it is?

Also, if you attach the rail will the stock battery still fit?

Hey TCLP, what kind of paint did you use?? The finish looks a bit too shiny..

maybe you can repaint with some Krylon Matte Black?
I was also thinking you could just paint the INSIDE of the lower receiver .. then the trades would show.. anyone do something like that yet? i'm interested to see what that looks like

That's strange, because I'm now 100% sure that my upper receiver is metal. The paint on some spots has worn down (charging handle area, inside areas from disassembling), and underneath it's a shiny silver colour. Perhaps the first batch was different?

HUGE EDIT: My gearbox shell is indeed metal, painted black. Sorry for any trouble or confusion caused.

All these differences are making consumers very confused about what they are actually buying. I can let you guys know that there are 2 different types of G&G clear guns that were offered (I believe CAS made their own custom).
The differences listed by G&G?

The more expensive have metal uppers, ball bearing bushings and ball bearing spring guide.

The cheaper have nylon/fiber uppers, normal metal bushings and original spring guides.

Lol the lower is Krlyon matte black, But next on my list is a metal body. I cracked a tab in the cold so its time to move to a metal one so that way it doesn't get worse.

Most retailers are selling the good ones, with the ball bearings and metal goodness.

Do you sell the more expensive or the cheaper version(s)? I am not sure as to who to go with for a g&g. Velocityarms or 007. 007 is closer but out of "light" combos but velocity arms has a better price.

I sell the cheaper plastica versions of the G&G right now. Keep in mind that all the "light" combos are plastica versions no matter which website you get it from. :)

Thanks I was a bit unsure about that. I'll have to see what deals you have up when I get av'd in just over a month here.

I've spoken to Ken from 007 and learned that the M4 Carbine's that he is selling are not CAS guns, they are direct from G&G and have aluminum alloy receivers and various upgraded internals as compared to the plastica series being sold by CAS which provides to many retailers. The upper receivers on the mach 1 models are magnesium alloy and have slightly different internal specs.