UnderCover Select Hard Folding Tonneau Cover 2019 (New Body Style)-2025 Chevrolet Silverado/GMC Sierra 1500 6' 7" Bed Std/Ext/Crew without MultiPro Tailgate without CarbonPro Truck Bed - Black Textured Model SL14021 Armor Flex 4 2021 GMC Sierra 1500 Headache Rack - Rear Ladder Rack - Gull-Wing Box Options:Post Headache Rack Only

UnderCover Select Hard Folding Tonneau Cover 2019 (New Body Style) 2025 Chevrolet Silverado GMC Sierra 1500 6' 7" Bed Std Ext Crew without MultiPro Tailgate without CarbonPro Truck Bed Black Textured Model SL14021 Armor Flex 4 2021 GMC Sierra 1500 Headache Rack Rear Ladder Rack Gull Wing Box Options:Post Headache Rack Only 4 2021 GMC Sierra 1500 79 The mounting brackets as well as the side bars and step pads are custom designe d for specific makes and models to allow the nerf bars to contour to the lines of your vehicle Just a simple pull of the release cable from either side of the bed and the cover effortlessly folds forward to grant easy 2 3 bed access no drill installation and tool free removal