You might also see what kind of sling connectors your AR has. That will be a factor in whether you need adaptors for your sling system. Also, out of curiousity, why a one point sling? As a matter of person of preference I prefer a two point sling to hang horizontally. One points can rack you good and proper if you have them hanging in front of you and you have to take off running hands free. With a two point you have the option of 45 degree frontal carry, and slinging the weapon system behind you in you are in a cuffing situation.
Glock 17, 19, 20SF, 21C, 22, 26, 27, Glock E-Tool, Glock knife
Quod ego haereticus appellari sequere Jesum.