Death-lock pincer
Megatron prefers to get up close and personal when he encounters a target. Often, he will use his death-lock pincer to attack an opponent. Wielding a force range of 576 psi, it also possess a telescoping blade that has a burn rate of 3 kilojoules per second.[1]
And it that wasn't bad enough, Megatron can also access his fusion cannon while using it. It will thoroughly ruin your day if you come across it.
Fiction
Revenge of the Fallen movie
During his battle with Optimus Prime over Sam Witwicky, Megatron extended the death-lock pincer for his battle with the last Prime, but Optimus countered by unsheathing his own Energon Sword and laid the smack down on the Lord High Protector. When Starscream and Grindor arrived, Megatron sheathed the blade, but popped it back out while talking about whether or not Sam was worth the future of the Cybertronian race, making the fleshing a little panicky. However, when Optimus turned his back after killing Grindor, Megatron impaled Optimus from behind with the blade on the pincer. Just to make sure the job was done, Megatron then fired a blast from his fusion cannon, extinguishing Optimus Prime's spark.
Later, after he was revived and received parts from Jetfire, Optimus attempted to kill The Fallen and avenge his lineage. Megatron countered by slashing Optimus with his death-lock pincher...and Optimus countered by breaking the blade in half with his bare hands! To top that off, he then forced Megatron to eat a blast from his own fusion cannon in the face, then sliced off the arm. Revenge of the Fallen
