The XS Sights AR-15 Tritium Flip-Up Sight with CSAT and Tritium Stripe delivers reliable, hands-on backup optics for your AR-15, combining rugged aluminum construction with a purpose-built flip-up design that locks into place when deployed and folds cleanly out of the way when not in use, making it an ideal choice for hunters, shooters, and tactically minded enthusiasts who demand dependable performance in low light. Built to endure the rigors of field use, this aluminum AR-15 sight integrates Tritium illumination for fast target acquisition in dawn, dusk, or poor light, while the CSAT-inspired styling adds a modern edge and practical visibility during rapid engagements or precision dialing. The flip mechanism offers quick elevation and co-witness compatibility with existing rifle optics, enabling seamless switching between primary optics and iron sights without breaking rhythm on the range or in the field. Engineered for AR-15 platforms, these BUIS provide a lightweight, durable solution that remains secure under recoil and rough handling, ensuring you always have a reliable iron sight option when your primary optic isnt ideal.