BAK 20-24 GM Silverado/Sierra 2500/3500HD 6.10ft Bed Revolver X4tsBrand BAK Part Number 80133RK Category Tonneau Covers Tonneau Covers Roll Up Condition Brand New Original Manufacturer Packaging Experience the next generation of protection and cargo management with the RealTruck BAK Revolver X4 TSthe best selling do it all hard roll up bed cover, now rack ready. With integrated T slot rails for securing racks, tents, and cargo systems, the X4 TS combines security, sleek matte black styling, and unmatched cargo