|3d printed in ABS|
I had to print it in 6 different pieces and solvent weld them together due to printer size constraints (which is why those seam lines are there). The seams are solid but slightly off-colored plastic, and will disappear once the painted.
It's to the G36K handguard what the large G36C handguard is to the G36C handguard. The battery space is approximately 45x25x245mm (something along the lines of 40x30x245mm would also be possible as the handguard slants inwards). For reference, here's an 1800mah 11.1v battery (thicker than a "mini" nimh battery with otherwise similar dimensions) in it:
|This battery won't even fit in standard G36C handguards, but the 2 cell (7.4v) version does|
|Held sideways to make the amount of horizontal play more obvious|
|Lonex flash mag pmag, ACM AFG, Walther 4x32 Tritac, JG G36KV stock, SRC G36 body, battleaxe mag converter|
Now for the bad news. Putting this up on Shapeways (or a similar service) would cost over $250 per handguard, I doubt anyone wants to pay that. Instead, I'm making the STL file available here: https://grabcad.com/library/airsoft-g36-large-handguard-1
Since I only made it for myself, I didn't really bother to perfect the model. There seem to be numerous small errors in the model, but the 3D printing software had no problems with it. Since exact specs vary per brand, you may need to file/dremel away some material to get the handguard to fit yours. Also, I messed up on dimensions a bit:
One other problem is that you'll need spacers between the bottom rail segment and the handguard or you won't be able to fit certain accessories (such as magpul/clone AFGs).