The Romeo-X Enclosed pistol red-dot from Sig Sauer merges rugged dependability with a sleek, modern deSign. Drawing on Sig's extensive experience developing durable red-dot technologies trusted by armed forces worldwide, the Romeo-X Enclosed is engineered to provide optimal strength and reliability, especially for concealed carry. It features a robust CNC 7075 aluminum housing and an aspherical glass lens system, built around a high-efficiency point source emitter, ensuring a rock-solid, distortion-free aiming solution in the most demanding conditions. Equipped with a side-mounted battery compartment and Sig Sauer's patent-pending beryllium copper flexure system, the Romeo-X Enclosed boasts an ultra-low deck height, allowing effortless co-witnessing with standard height iron Sights. Available in both Pro and Compact standardized footprints, this red-dot reflects Sig Sauer's military-grade innovation, offering exceptional dependability and performance with no compromises.