AR15 ambidextrous center verticle loop, no bind 180 degree sling adapter end plate is constructed of all steel for strength and durability. It easily installs in minutes and will replace the original factory reciever end plate. This will allow you to attach a sling for a 180 degree range of motion to smoothly transition from one shoulder to the other and avoid 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.