The Unity FAST Thermal Riser in Flat Dark Earth brings thermal optics up to a precise 2.05" optical centerline when mounted on a Unity CTM or raises thermals with OEM 1.54" clip-on mounts to the same height.Unity FAST Thermal Riser - Flat Dark EarthRaises thermal to 2.05" optical centerlinePicatinny rail compatible with standard 2 cross bolt clampCompact lightweight designAnodized finish for durabilityCompatible with Unity CTM and OEM 1.54" clip-on mountsEssential for tactical applications requiring precise thermal optic positioning and optimal sight picture alignment on Picatinny rail systems.