BAK Revolver X4ts T‑slot side rail assemblies for 2016–2024 Nissan Titan XD 6.7 ft beds are sold as a pair of fully assembled rails. The listing provides rails only—no cover—and notes applicability with or without a track system, supplying direct replacement hardware to restore or upgrade Titan XD bed rail functionality for Revolver installations.
BAK 16-24 Nissan Titan XD 6.7ft Bed Revolver X4ts T-Slot RAILS ONLY - NO COVER