Posted in Reviews That’s Just Prime: Robot Masters (Knock Off) Optimus Prime w/ Trailer Geek World Order November 30, 2017 Leave a comment Bert looks at a KO version of the Robot Masters Optimus Prime. Author: Geek World Order Related Articles That’s Just Prime: WST Convoy That’s Just Prime: Cyberverse Optimus Prime with Battle Base Trailer GTR: MTC Giant Dump Truck Beast Wars Optimus Primal – Vintage Toy Review