how to make a Rifle holding character and animate gun recoil?

Hi there, I need the community help, please. I want a character to hold a rifle and shoot with it, so both hands will be holding different parts of the rifle and there should have a recoil effect that affects the movement of both arms. I tried using magnets on the two holding places of the rifle and in both hands, but the rifle keeps detaching from the hands ( even if I increase the strength of the magnet effect ). I also tried to draw a rifle together with one of the hands, but I could not get the second hand to look attached to the other holding place and animate the recoil effect on it. What am I doing wrong, is there another way? I appreciate any help.