Replacement BAK Side Rail Assemblies. This component is sold as a set of two only. Contains fully assembled set of rails. Includes: 2-Inner Rails, 2-Outer Rails, Mounting Plate, Spring Actuators, Locking Levers, 2-Spacer Shims (if necessary), and 8-Angle Shims (if necessary). Does not include clamps (sold separately). | BAK Revolver X4s Replacement Rail Set RAILS-80146