I bought this sling to use with a RRA mid-length AR. One thing to mention is that I have a Magpul MOE stock, and this sling is not the best for these. It is designed for a stock that has a sling slot cut near the top, but you can mess with it to make it work.
Otherwise, the sling works great with this rifle, and is adjustable for my 6'2" height and long reach. Threading this thing through all the buckles and loops is a little time consuming and confusing, but just keep with the instructions and you'll get it. It also came with straps for attaching the sling to swivels, rifle stocks, and almost anything else you want.
Overall great sturdy sling, with tons of features.
Pros: Multiple uses, great 3-point sling
Cons: Takes a while to set up
This review was written in the old system and had content requirements that are different than reviews written today.