It's just a cheatbot2 part Massimov...
It isn't Nary, do you see it here?:http://beetlebros.gametechmods.com/robotarena.htm
Super powered spin motor, burst motor, air piston.
You know the Ruiner bar end's collision mesh is rotated 90 degrees right?
edit: Why the pointless Co2 tank?
edit: GRAAAH OMNIEXTENDERS ARE EVIL