Have a red ARE truck bed cover. Was on a 2012 Chevy 1500. Haven't used it for at least 5 years. Don't have the rail attachments. Have the key to the lock but it doesn't seem to work a the moment but with WD-40 it might. Correction, lock does work.
Tried to use my number as a direct contact but got the Google voice verification scam nonsense. Reported it to NexTech. If interested please use the website contact system.