Rear sling mounts that attach to slot in the stock?

Does anyone know if there is something that would work well as a rear sling mount that attaches to the slot at the end of the Kriss shoulder stock?  I prefer two-point slings and use a Magpul MS3 in that configuration on my PS90.  For the Kriss, I want to add a Magpul RSA along the front rail behind the front BUIS and the attach the to the bottom of the stock.

Has anyone done this?  I found plenty of posts about adding a sling to the hinge pin but that's not where I'd like to go.

Anyone?  It doesn't seem that there's anything made specifically for the Kriss of course.  Maybe I'll try else that'll fit the webbing slot.

No one makes anything but you can make something really simple and cost effective.

Buy this.

http://store.magpul.com/product/MAG333/188

And screw it onto the slot. Then use a QD sling point.

Interesting! Thanks for the suggestion. I may try that if I can't find a better solution.