So I have an RRA Elite Op 2. It doesn't have a back uh thing for a sling but it has three of them on swivels in the front. I'm sure I'm only going to use one of those. Can anyone recommend a good two point or single point sling that doesn't require adapters and attachments? I'm not mechanically inclined myself. I just want a good sling that will work and maybe have a quick detach feature.