I just ordered one for mine on Monday....should be here by now, most likely on Monday. The clincher for me was the ability to go between 1 & 2 Pt. Normally I don't like a single point on a carbine as i have a tendency to whack myself with the gun when transitioning to a handgun and moving. I figured with the shorter OAL more sensitive areas should be safe with the pistol in single PT mode.
The rest of my ARs (and a FAL) wear BFG Vickers, which I really am a fan of. Unless this sling makes a huge impression, the other guns will most likely keep the BFGs.