I would like to add, I do have a revolution Mechbox but already blew the sector gear. There are no replacement parts available yet, $600 paper weight for a while.
It was the 130 mechbox, 3 gear set up. I can't pin point why the fail happened, leaning toward faulty shimming.
I also own a PTW, so for a comparison the revolution gives the same nice crisp trigger response of a ptw.
Owning the PTW is about more, it is about having a gun that is true 1:1 scale of the real thing, working bolt stop feature, realistic magazines, a very reliable and advanced mechbox, quick change cylinders for fps.
The revolution mechbox gives you a taste of PTW flavor, but is no way near a PTW.