My bro Ambrosia Terrybone from Instagram gave me this idea for saving some real estate on your carbine. An Mlok QD socket can be stacked on top of a weapon mounted light base. The back side of the socket has some little tabs that need to be removed. You can do this with a flat file or with a belt sander. Then its just a matter of removing the screws on the light base and installing the QD socket.