Amazon.com: Wade 72-01147 Truck Bed Rail Caps Black Ribbed Finish with Stake Holes for 2007-2013 GMC Sierra 1500 & 2007-2014 GMC Sierra 2500HD 3500 (Except Dually) with 8ft bed (Set of 2) : Automotive
2014 2018 GMC Sierra Bed Rail Letter Inserts RED 1500 2500 3500 | eBay
GMC Sierra 1500 Bed Rail Caps | RealTruck
Amazon.com: Bushwacker 49525 OE-Style Ultimate BedRail Caps for 2007-2013 Sierra 1500 | Fits 69.3 in. Bed w/Stake Holes : Automotive