As leo said, everything bar the brushless setup for the drum. It would be relatively simple to fit either a new brushless setup or a speed 900 to the drum as it used to have. The weapon system definitely still has many a spin left in it. Far stronger than it was in previous competitions. Bear in mind it also has a titanium chassis internally along with a titanium top, hardox bum and 20mm nylon sides that have been more than adequate in the past.

At the moment I'm looking to see what interest there is so if you are interested either post on this thread or drop me a PM.