The Dawson PrecisionA(R) DPO-ECO (Extreme Co-Witness Optic) is designed for hard-use tactical environments, offering rugged durability, precision alignment, and a co-witnessed sight picture. Engineered as a one-piece sight and plate system, this optic mount ensures maximum reliability without the risk of shifting during heavy use. Key Features 1-piece sight and plate design - Machined from aircraft-grade aluminum for extreme durability. Designed for Staccato 2011A(R) DPO pistols - Not compatible with other optic cuts. Tactical height black rear sight - Co-witnesses with Trijicon RCR for enhanced target acquisition. Non-windage adjustable - Ensures a solid, locked-in sight alignment under the most demanding conditions. Easy installation - Includes all necessary tools, hardware, and instructions. Perfect ImpactA(R) Policy - Dawson Precision guarantees perfect alignment when using their recommended front sight. Front Sight Height Requirements For carry height sights: Requires a front sight .180" taller than your current front sight. For tactical height sights: Requires a front sight .045" taller than your current front sight.