Boneyard cyma platinum mp5k. There's no wiring loom or mosfet with this. Everything else is there. Doesn't come with a mag. Externals are in excellent condition. It's comes with the longer foregrip rather than the stubby one it has as stock. 

The hop unit may need looking at. The modern looking mp5 mags don't fit (and they should) because they are catching on the hop unit. The standard style mp5 mags fit fine. 

Hop units are in stock here: https://www.tsairsoft.com/cyma-mp5k-mp5k-pdw-hop-up-unit

A perun v3 should get this running and they are in stock here:

https://www.ak2m4.co.uk/perun-v3-hybrid?search=Perun v3

There's a negative airsoft video showing you how to fit the perun. There's no screw thread for the cut off lever so you'll need to find a way of attaching the perun (you usually use the cutoff lever screw but there isn't one here by design). 

I'm after £120 including postage and fees. If you want more photos etc just ask. You need ukara or valid defence to buy this please.