The punch connects, with a loud crack and spatter of energon from his robot zygomatic splintering and jaw denting.

Delightful.

Because of the force of it, Sentinel is dazed, knocked to one side and clearly unsteady on his feet afterwards. He can see the wrist guns work, though, and continues firing off more rounds at point blank range, albeit them being less aimed than before due to the pain in his face and slight concussion.