Light Arm Receiver for Aft Angled MountsThe Light Arm Receiver secures a Light Arm to the mounting plate on Edson Vision Series Aft Angle Mounts. Edson’s Light Arm Receivers require an Edson Mounting Plate and an Edson Vision Series Mount.Specifications:Mounting Plates are required to complete an Edson Vision Series Mounting System.Base mounts sold separately