The Meprolight ML63143 Fiber-Tritium Bullseye is a low-profile optical pistol sight intended for Kriss Sphinx platforms. It provides an illuminated dot-and-circle bullseye aiming point that supports quick, intuitive target acquisition. Illumination comes from a combination of daylight-visible fiber-optic and premium-grade tritium, so no batteries are required. The design allows installation on standard pistol dovetails and aims to work with many existing holsters.
Key Specifications
- The model number is ML63143.
- The finish/color is Red.
- Designed for use on Kriss Sphinx pistols.
- Illumination is a fiber-optic and tritium combination for day and low-light use.
- No batteries or switches are required; the sight is always on.
- Nighttime illumination is guaranteed for 12 years.
- Installs on standard pistol dovetails and can eliminate the need for a front sight.
- Manufacturer describes it as the smallest optical sight based on its patented optical illumination.
- Listed weight is 0.105 (unit not specified in source data).
Compact, reliable, and maintenance-free, the ML63143 provides a straightforward way to add a visible aiming point without batteries. Its fiber-tritium system maintains usable illumination across lighting conditions while the low-profile housing minimizes holster interference and carry disruption. This sight suits users seeking a simple, durable optical option for everyday carry, duty, or general-range use.








