With the Micron BridgePlate and Dovetail you have the start of the new Micron System. The Micron FS700 Riser is specific to the camera. It is required in order to get the optical center of the camera to the correct height relative to the LW15 rod spacing. Found on the riser are also 1/4-20" threaded attachment points for the side plate (coming soon) as well as a variety of other useful items like side mounted rosettes. Off the rear of the riser are attachment points for an additional Elements LW15 Rod Support Bracket. Found underneath the riser is Elements' magnetic shoulder pad mounting system. These can be interchanged very quickly between Elements shoulder pad designs but also completely removed in one clean movement by just popping it off when needed.