I attached a Magpul MOE Sling Attachment to the front and used an Mcarbo Single Point QD Sling Mount mounted as directed on the castle nut. (Loctite 380 has held the castle nut securely for me.) I use a Magpul MS3 Single QD Sling (Gen 2) that allows me to switch between two point and single point operation.
There are so many options out there, but maintaining the foldability of the S2K was really important to me, so the options become more limited.
There are so many options out there, but maintaining the foldability of the S2K was really important to me, so the options become more limited.