I didn't take any pics of the Areo Precision ATLAS S-One handguard by itself.
I took a pic of the parts that lock it onto the barrel nut so I'd remember which way they go. (note the "lock/unlock" pictogram)
You do have to time the proprietary barrel nut for the gas tube, but that's a small price to pay for such a CLEAN and smooth design.
Where most budget handguards have some nuts and bolts on a clamp under the handguard, the ATLAS has this ingenious turnbuckle system to lock it to the barrel nut, and the area around it is shaped to remove any protrusions commonly found on more "simple" handguards.



Here's a quick vid that shows the install in very good detail.