I cannot specifically say if Redding offers a carbide 30 Carbine die.
Even so, most of the die manufacturers who make carbide 30 carbine sizer dies still recommend using lubricant when sizing cases. This is due to the tapered walls of the case. (30 Carbine is a straight walled case, just not a parallel walled case)
That said, I saved the cash and bought a steel 30 Carbine sizer die since I needed to use lubricant anyway.
Many folks do not use lubricant with their carbide 30 Carbine sizer dies.