Kastle Group EOTech XPS-226 Optic Riser Black. 26 in optical centerline height which promotes a heads-up posture for faster target acquisition. It is designed for use with the EOTECH XPS series and similar absolute co-witness optics. The XPS-226 features our patented titanium KastleClamp mounting technology. Specifications for Kastle Group EOTech XPS-226 Optic Riser: Manufacturer: Kastle Group Finish: Type III Hard Anodized Fabric/Material: 7075 Aluminum Features of Kastle Group EOTech XPS-226 Optic Riser M1913 Picatinny Riser Absolute Co-Witness Optics 2.26 in Optical Centerline Patented KASTLE Mounting Tech Type III Hard Anodized 7075 Aluminum Package Contents: Kastle Group EOTech XPS-226 Optic Riser Kastle Group XPS-226-BLK: EOTech XPS-226 Optic Riser Black