Originally Posted by xeno000
Hawkeye's quiver was brilliant. He chose the arrowheads with a control on the bow itself, then the quiver armed an arrow shaft with the selected head and elevated it from the quiver. That explains how Clint knew which head was on each arrow as he pulled them. It was a very elegant solution.
I liked that as well since I had my doubts into how his arrows and quiver would work in the film. In the credits, just after the film ended, showing a very close-in view of his mechanized quiver made me even more of a fan of his.