BAK Revolver X4ts Hard Rolling Truck Bed Cover For Select 2005-2021 Nissan Frontier 6' Bed with Factory Bed Rail Caps Model 80507RKBAK Revolver X4ts Hard Rolling Truck Bed Cover 2005 2021 Nissan Frontier 6' Bed with Factory Bed Rail Caps Model 80507RK Experience the next generation of protection and cargo management with the BAK Revolver X4ts from RealTruck. The highly popular Revolver's latest iteration improves upon an already highly functional design. Constructed from durable marine grade vinyl atop heavy duty, cut resistant aluminum slats, the new BAK Revolver X4ts features