Ion Blaster

The Ion Blaster is a kind of laser rifle and the signature weapon of Optimus Prime. Only used by the Leader of the Autobots when all attempts at peace have failed, the Ion Blaster ensures that freedom is the right of all sentient beings. Optimus once used it to take out the entire Decepticon Army on his way to confront Megatron at Autobot City in 2005. The weapon strikes fear into the Sparks of any Decepticon foolish enough to challenge him...

Except Megatron. Only Primus knows how many times Optimus has shot Megatron and failed to kill him. Starscream knows that frustration all too well.