Posiedon Raisen Kit, bought this partially assembled a few years ago. Pretty rare, as featured in Gadget Trial anime style video game released to the Japanese market. 

I bought this with the required TM M16A1 style receiver (With the bolt release removed to allow the kit to fit) and pistol grip. Previous owner had assembled the kits pistol grip (hence the glue marks), I decided to put it back to its constituent parts and store it. Includes a hop unit, barrel and outer barrel which has been modified to fit the kit. 

There are no missing parts in the Poseidon Kit itself.

There a couple of minor cracks on the kit pistol grip but is solid when assembled, the bodykit has rub marks. There are some darker marks where I have cleaned it and was still drying. Photos have been taken with bright light to highlight the exact condition of it.

It will require someone who is technically minded to assemble. This requires a full Gearbox, Motor and Wiring to finish.

These kits are stunningly rare outside of Japan, especially ones that are (relatively) unassembled. 

More info can be found here. 

http://www.poseidon.co.jp/2F/raisen/rai_1.html

£65 Posted to the UK. Firm price.