I am working on a top-down 2D game in that I have a character running with a gun. I have attached a screenshot of his skeleton structure in Spine.

Green represents the L arm, Blue R arm, Red Gun and Grey Head. I want his arms to flow the gun wherever it moves and the gun to flow a target bone (I am doing this for his shooting animation, I would just move the target bone to the mouse click location in Spine Unity). The problem is that the gun is not pointing towards the target bone. Can someone please help me in this not sure what is wrong here :bang: .
P.S Have also attached the sample project structure.
ExampleShotting.zip
Thanks FJ.