The RT III is the preferred rack for running a full size lightbar. This is a double decked style rack with steel tubing and a black hammered powder coat finish. We make the RT III in two sizes, the slim version for an LED bar that is 3" or under, and the standard size for a 4" bar, but not much taller. You will not need the feet on your light bar, and overall length should not exceed 50 inches. The RT III includes the two sided, flip up and down wrist action handle sign, with available option of night reflective vinyl, as well as the antenna mounts on the backside. We include two flags with each rack, with quick release snap lock fittings in orange. There is no beacon mounts, the RT III is only designed for a light bar which will bolt inside our rack to the channels on the frame of the RT.