Assembling a KJW G23
 

I've recently received a Glock G23 I ordered from ehobbyasia, but since we're in Canada they had to disassemble it completely. Now I'm trying to put it back together but the only part I can manage is the slide, anything else i have no clue what to do!! I've looked at the diagram to see if I can figure out what goes where and in what order, but I'm completely stumped.

Does anyone have a step-by-step guide to reassembling a KJW glock G23?? And BTW, I've emailed ehobby and they told me they don't have any guides and that the diagram in the instructions is "so easy"..... :x I guess when I've disassembled and reassembled a few it will be "so easy", but right now it's not (since this is my first airsoft gun)!!

Thanks for the help!

Finally, after looking at the diagrams, I realized they shipped me 2 diagrams (one for the G23 (the gun I have) and one for the G27). I found that the trigger mecanism is that of the G27. I've been able, after fiddling around a bit to actually assemble it. I haven't yet tested it with gas to see if it actually works. Also, I'm left with a single part and have no clue what it is. Does anyone know what it is ??