After reading trough Johhny's Malorian wiki, I read that it was specially made for him by Malorian arms and that it was so powerful, that it packed quite the punch so It was designed to be fired with Johnny's metal arm. Could this be represented in-game so that when we are playing as Johnny, we use our left hand?
Source: "Over the years, Johnny wielded different Malorians, each one more powerful than the previous. His last one was as powerful as an anti-tank gun, and thanks to his special cyberware arm and shoulder, it didn't tear it off from the recoil when he fired it."
Source: "Over the years, Johnny wielded different Malorians, each one more powerful than the previous. His last one was as powerful as an anti-tank gun, and thanks to his special cyberware arm and shoulder, it didn't tear it off from the recoil when he fired it."