Running board end cap, passanger rear

Just bought a 2016 and passanger rear running board end cap is missing. The running boards are not the stainless ones. Here is a pic of running board and what the end cap looks like.
Best i could find is they aren't made anymore.
Any help in pointing me in the right direction (if any) to try to find one (or a set) would be greatly appreciated!

 

They're Iron Cross Patriot Black Running Boards.

I just checked and their website was offline.

Link to boards. https://www.ironcrossautomotive.com/ICPatriotBoard.html

Link to replacement parts request. https://www.ironcrossautomotive.com/ICReplacementParts.html

 

Thanks for the info. From the research I did prior to posting, it appears the company no longer exists, google shows it as permanently closed.

Hoping some one has a set tucked away on a shelf or something.