This is a toy M4 I've been working on.
Weighted the insides to give it a more realistic weight and painted it black.
The red dot sight is a real working sight, although made for airsoft. :P
The rail covers are made from some sort of composite material and the tape on the magazine is book fixing tape. Trololol
I'm still planning on adding Magpul folding backup sights onto it and using it as a prop the next time I fursuit.