The shield looks like a toy; brightly painted, fragile, and the way the artificial light plays off its surface give the impression that there's something not quite right about it. Khan would have scoffed, if he hadn't been too busy lunging forward to follow up his blow. His arm draws up to bat the shield aside - the only concession he makes towards to improvised weapon.

His mistake.

The disc strikes the augment with enough force to drive him back and down with a painfully hollow crack, leaving him to winded and struggling - the vibranium is the closest thing in the room to an immovable force, and Khan, for all his strength, is nowhere near an unstoppable force. The murder doesn't leave his eyes, but it's clear that the hit hurt; teeth grit and favoring his ribs, he manages to get his feet beneath him just in time to meet Steve's rebound head-on.