How ridiculous is it that i can build an entire AR with no major issue but couldn't tell you anything any slings?

I'm looking for a sling for my various AR15 platforms.

I believe all of my rifles have a qd port in the butt stock or the end plate. A few have them on the handguard as well.

Ideally I'd like a sling that does single and double point. I saw a few that did that. Naturally all with mixed reviews. I'm just not sure what my preference is yet.

I only really want 1 sling. Preferably under the 50$ mark (but totally willing to entertain more if it is the right fit). QD connection is a must.

-Zach