The rings in your top picture is an illustration of the ARMS #22 high mount, not a KAC QD riser, you can tell be the armatures on the rings. IIRC KAC has never made single rings with QD throw levers.
King Arms makes one, but is discontinued. KA-SM-05. But there are clones of them.
As for the riser I believe you are looking for the ARMS #17 riser.
http://www.ebairsoft.com/supplementa...se-p-1544.html