Holosun Lower 1/3 Mount / Absolute Cowitness QD MountCNC machined aluminum riser mount designed to work with standard Picatinny rails. The product is anodized in a black matte coating and fitted with an Aimpoint Micro standard footprint for mounting HS403B red dot sight and compatible variants. The modular design consists of a QD Picatinny base mount, 1 3 Co Witness, and Absolute Co Witness risers. This solution gives the option of selecting optimal sight height depending on preferences and