Carried one for years as a patrol rifle, and still love the AUG. For my purposes I needed a sling that could be shortened sufficiently to carry the rifle over my left shoulder, muzzle down. This is sometimes called "African carry," and allows the rifle to be swept forward and to the right with the left hand; the right hand meets the pistol grip and lifts the butt into the shoulder. Low profile but fast. The sling also needed to be lengthened quickly and easily to allow for patrol carry, that is across the body with the depressed muzzle to the left, right hand on pistol grip, again ready to lift the butt into the shoulder. Slightly faster than African and comfortable on long searches. Tried many different slings; no firm preference so long as they are of heavy web nylon and adjust quickly, as mentioned above. Probably my biggest beef with the AUG, at least the Pic Rail I carried (with a 1.75-4x Leupold; state of the art at that time) was that with the sling attachment point as it is just in front of the rail, you would bark your knuckles on the sling swivel and scope every time you charged the rifle under pressure (e.g. felony car stop). I tried a half-dozen slings/hardware but never found one to avoid the problem. Even a length of parachute cord as "hardware" didn't work, as my knuckles still impacted the permanent swivel. I now have the front of the sling attached to a swivel mounted on the barrel forward of the charging handle.
Single-point slings are good for building clearing but little else, IMHO. IME no one shoots (effectively) from the off shoulder in a fight, and with a single point you will eventually, and probably repeatedly, stick your muzzle in the dirt and rocks when you take a knee. Just my experiences and observations.
