Upgrade your AR-15 by switching out the basic receiver plate with Frank Bee Ambidextrous AR-15 Rifle Sling Adapter Plate. The sling adapter allows you to attach a single point sling to either side of the plate for ambidextrous (right or left-handed) shooting capability. With a carbon steel construction and an electrophoresis coating, the AR-15 end plate is built to withstand rust and abrasion. Overall, the rifle sling plate measures 2 1/8” X 1 11/16” X 3/32” (3 MM).