This will be a freebie to the airsoft community. I'll post the drawing here, and leave it editable.
Let's do the first "Open Source" Airsoft design. We'll start the process with drawings of the Standard Chinese/Marui AK-74. This design is open to input from other designers, I want others to add details, suggestions, etc.
The base criteria is we want a
reasonably realistic approximation of the huge boxmag-equipped PKM's, like we see in the pics from Iraq.
Going for too much accuracy can kill this, or keep it at the starting phase forever. So let's say 8/10ths real will suffice.
First off, we need pics. To get things started:

I hope to God I never meet the guys in the next two photos...but I bet they know where to get good
Brown-Brown.

And finally, this is what we want to end up with...

And before somebody points out an obscure high-dollar production model on Ebay, This is about the design/construction process itself.