If you can get some steel cable (1/4-5/16) between two trees this works pretty slick
https://www.youtube.com/watch?v=XRnFxIAKRvw
https://www.youtube.com/watch?v=XRnFxIAKRvw
It is his trigger arm that is broken, so minimal torque on the broken bone. He can pull the trigger, so he is good to go ... :facepalm: