I have a CFX and I want to put a sling on mine as well. I have thought it out, but I haven't actually done it yet - too many interferences on my time and money. You know annoying things like work, bills, honey-doos, etc. Anyway, I think it is possible to put a set of side mounted swivels (thats what I want anyway) on by using a stud and swivel from the front of a pump shotgun on the side of the forearm and another near the but plate on the same side. I might even have to make the stud, but I know I can buy the swivels. I would have to drill a hole in the side of the but and forearm in a place where the back of the stud wouldn't interfere with the cocking mechanism. I am right handed so I would put this on the right side. What I don't know is if the plastic stock is stiff enough to hold up - I won't know that until I try.