Following Stark's line of vision, Bucky lifts up his arm in silent invitation to examine at will.

"I know motors and guns and one of my best pals is an android," he boasts with a crooked smile. 'Course, despite his less-than-natural creation, Jim's humanity was never in question. "I wouldn't have the first idea how to put something like this together. It's..."

He falters for a second, flexing his fingers. "...like something out of a pulp. Half man, half machine! Just wish I knew how I got the thing."