And it looks like it has buttons on the grips for easy pressing, much like the paddles of the Xbox Elite controller.
EDIT: This is either a new design or a modular version:
More here: http://ipforce.jp/patent-jp-A-2016-106297
EDIT: This is either a new design or a modular version:
More here: http://ipforce.jp/patent-jp-A-2016-106297