- Designed as optimal structure: MK S is designed as an optimal structure with the data collected through many shooting tests by Engineers of M.K Archery. - To use the high strength 7075 aluminum: The 7075 aluminum, the main raw material of MK S has high durability. It is a proper material to make riser because it is not easily twisted or modified. - To apply NC accurate manufacturing process: The thickness, weight and angle that may occur minute differences are processed in several steps through the NC accurate manufacturing process to make the riser accurate. - To apply center identification system: The MK S is the first riser that applied with the center identification system. - The optimized grip: The grip developed through repeated tests create a center-focused point of force, it allows your shoulder to hold the riser more comfortably and to take a stable position.