Presenting the Weaponizer Optimus Prime from the Transformers Prime toy-line.
I'm personally not sure if this particular incarnation of Optimus Prime is canon. But given the fluid nature of Transformers as has been manifested in both the cartoons and the movies, I would not put it beyond Prime's abilities to manifest a pair of chain-guns.And I've always thought that Optimus Prime is a bit under-gunned. Those big-broad shoulders definitely have room for additional weaponry. God-Ginrai showed us how cool it looked. But shoulder mounted weapons for Optimus Prime did not truly manifest. It took third-party groups to produce shoulder mounted weapons for Prime, particularly the Gears of War-2 Pack and the TAW-Sword:
