I apologize for not posting this sooner, this flew past me. So this one is going to be a bit interesting. It's technically a free-for-all.....based around the AR-15/M-16 platform.
* High Poly Model
* Low Poly Model with High Poly baked
* Textured with basic maps (color, specular, gloss, etc.)
* All models rendered by the end of the month, along with a wireframe of the low with and without maps applied. Tris, poly number included.
* Based around the M-16/AR-15/M4 platforms and any of their variants.
* Attachments, paintjob, etc are completely up to the artist. However they must be based in reality, though some artistic license on minor differences is allowed. Please provide references photos of your attachments.
* all attachments must be compatible with the rifle.
Here are some examples of the wide range of attachments and customization for the AR-15. Also here's a page on IMFDB
on various M16 variants.