Wrong. The Rhino has a false hammer. It works via an internal cam/pin system. The visible hammer is simply a manual cocker, while the hammers on the hand cannons in Destiny indicate that they're fully functional. The Rhino likely inspired the overall aesthetic of the hand cannons, but they're still functionally incorrect. Here's a video explaining how the Rhino functions, which is not the same as the hand cannons are presented in Destiny. https://www.youtube.com/watch?v=6gQiXoiMl4c&feature=youtu.be&t=59