The Meprolight ML63143 Fiber-Tritium Bullseye is a compact, low-profile optical pistol sight designed for Kriss Sphinx pistols. It combines a fiber-optic element with a premium-grade tritium insert to provide a clear illuminated dot-and-circle aiming point in a wide range of lighting conditions without the need for batteries. The sight installs in existing pistol dovetail slots and is sized to remain compatible with most holsters while offering fast, intuitive target acquisition.
Key Specifications
- The model is ML63143.
- The sight provides fiber-optic and tritium illumination for day and night use.
- The color of the aim point is green.
- The design requires no batteries and is always on.
- Nighttime illumination is guaranteed for 12 years.
- Installation uses existing pistol dovetail slots.
- The sight is specified for Kriss Sphinx pistols.
- The system eliminates the need for a front sight.
- The profile is low for holster compatibility.
- The optic offers fast and intuitive target acquisition.
Whether used for everyday carry upgrades, range work, or low-light readiness, the ML63143 delivers a compact, maintenance-free aiming solution that preserves holster compatibility while improving sight visibility across lighting conditions.









