No, unfortunately. I am 3D printing a clip up cap for it though, then I am going to take it a couple places and try to get quotes on what it would cost to have them made. The biggest BC cap is still 3/4" too small (that I am aware of anyways).
If you could find a cap from a 4x PVS-12 it would probably fit, but it's not much of an improvement and I doubt you could find one easily.