QD sling attach point on Magpul forend help?

[Eagle1*]

I have recently seen some of the guys drill a hole in their Magpul forends and attach a QD sling attachment point for the sling swivels. Does anybody know where I can get one of these to put in my forend? Thanks...

[Inuvik]

Is this what you are looking for?

http://www.impactweaponscomponents.com/product/rotation-limited-quick-detach-sling/

[Failure2Stop]

https://www.m4carbine.net/showthread.php?t=77525

[Eagle1*]

thanks, thats it...