Arisaka Defense RDM Aimpoint Micro 1.54 Inch Black Mount

The patented Arisaka Defense RDM is engineered to mount Aimpoint Micro T1 and T2 optics, and accommodates other red dots sharing the same footprint, such as the Aimpoint H1/H2, Aimpoint Comp M5/M5S, Sig Romeo 4 and 5, Vortex Crossfire, and Holosun HS503/515/530. This mount is offered in three heights: 1.54″, 1.93″, and 2.26″. The 1.54″ height delivers lower 1/3 co-witness capability, allowing standard AR height iron sights to remain visible in the lower 1/3 of the red dot optic lens. The 2.26″ height aligns with the Unity FAST FTC Magnifier Mount, with AR height iron sights visible only through the window beneath the optic at this taller dimension.