Defected MK18 Specna Arms + upgrades

I’m selling a defected Specna Arms Mk18 aeg. Thought it would be easy to disassemble to take some pictures and reassemble it. Bad ideia. Don't know what I did, but the gearbox is not rolling properly. Believe it would be easy to amend it for someone who understands airsoft mechanics.

However, it has some fine bits:

. New Hop up unit
. 60º maple leaf bucking
. Titan trigger set
. Prometheus 6.03 precision barrel

Comes with a 1.11v battery and 6 metal mags in tan. Can send it, shipment cost on buyers’ charge