Specna arms MK18 edge 2.0

I have for sale is a
Specna arms sa-e19 (mk18)

It has:
16:1 gears
Specna arms high torque motor
Gate aster ( i have the usb link for sale to, an work a deal out)
2 mid caps
Quick change spring system

I rebuilt the gun, but screeches. Shoots around 320 fps. I have no time for airsoft anymore. Could be a simple fix for someone. Beautiful gun.

Again not sure if this should be posted in the boneyard section. As it shoots etc. Im looking for £190/200 posted.