Knuckle-spikes

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Knuckle-spikes are among Optimus Prime's vast arsenal and extend from the Autobot leader's forearms.

X Gon' Give It To Ya!

Fiction

Dark of the Moon film

During the Battle of Chicago, Optimus used his knuckle-spikes to punch Shockwave through the abdomen, weakening the Decepticon. Dark of the Moon

Toys

Asia Premium Series

• Optimus Prime (Ultimate Edition, 2015)
  • Asia ID number: APS-01U
  • Accessories: Eliminator Gun & Assault Blaster (forms Mega Striker), shield/battle shield, Tank A & Tank B (forms Ion Blaster), Jetwing jet pack, Arm Gatling Cannon A & B, Leg Armor A & B, Knuckle, 2 Battle Blades, 2 Battle Hooks

Asia Premium Series Ultimate Edition Optimus Prime includes a brand-new knuckle accessory, which can be installed in either hand.