The Arisaka Micro Mount Mk2 is designed for Aimpoint Micro T1 and T2 optics and is also compatible with other red dot sights sharing the same footprint, such as the Aimpoint H1/H2, Comp M5/M5S, Sig Romeo 4 and 5, Vortex Crossfire, and Holosun HS503/515/530. Available Heights: