She actually looks impressed, which pleases him. Peter worked so hard on that. He misses the boy-- though it's much safer this way with him back home-- and this remains the best reminder.

He grins then. "Hang on, hang on."

A third full shift would be much, and would leave him exposed out here but a partial could work. He lets his power light, focusing the energy around his arm, and it dissolves Fingers go to bone and the one sleeve is looser than it was a second ago. He pushes the sleeve back and pulls. The arm comes off just like that. Still grinning, he shoves aside his jacket to show his suspenders. Old fashioned, sure, but since he learned this trick in the Outlands it's become too useful for him to just discard them. Plus, it keeps his clothing together in a pinch with sudden shifts. He positions his arm with his remaining hand, pulling back. His stance really isn't bad at all. He's evidently done this a lot. And then he fires.

There is arm goes, flung across the range. As it soars, his hand opens, just in time to grasp the target's edge. A slight swing for momentum and it flips up to land atop of it all and wave back at her.