Holosun Spacer 510C Features Aluminum construction Matte finish Raises 510C Optic to a lower 1/3rd co-witness The 510C Riser will raise the height of the 510C to a Lower 1/3 Co-witness height (1.63"). This riser mounts in between the 510C and the QD mount. Mounting hardware is included. Holosun Spacer 510C Specification PHYSICAL DATA Material: Aluminum
