I have an Accu-Tac WB-4 with Arca that I'm looking to sell. I mounted it to my rifle and decided that it wasn't the one I want so it's basically new (never shot with and only on my rifle for about 5 min.). If you look on the Accu-Tac website, it looks just like the FC-4 Gen 2 but doesn't have the pan feature. Let me know if you'd be interested.