How to attach both hands to a weapon using sockets?

Hi, I am trying to attach my Shotgun to my Right Hand Socket … Easy enough just set the origin of the shotgun to the handle and attach shotgun to character’s right hand socket. Done. HOWEVER, I also want to attach the Left Hand to a
socket on the gun where it is to hold it. on the shotgun it would be on the Pump. I want to do it this way so that when the Shotgun plays the pumping animation then my characters hand will follow the pump motion.

Is there Anyway to do this?