XS Sights Long Rail with Ghost Ring - Ruger GunSite Scout RifleXS Sights Long Rail with Ghost Ring Ruger GunSite Scout Rifle The XS Long Rail with Ghost Ring for the Ruger Gunsight Scout rifle allows you to mount optics in the traditional position over the receiver, or out in front of the receiver. It is machined from billet aircraft aluminum and finished with hard coat anodizing. The long rail installs using the factory mounting holes but it extends over the receiver to give you more flexibility in mounting your