Our AR15 Hand Guard Rail sling attachment adaptor is constructed of Aircraft grade aluminum for strength and durability.It easily installs in minutes by simply attaching it to forward part of your hand guard, great for both left and right handed shooters. It provides a forward attachment point for your sling and allows you to attach a sling from the left or right side depending on the way you mount it. It helps to prevent snagging on your clothes or other gear while shooting. It is also great for easy tactical carry when not in use. No gunsmithing is required.