The TFC tritium sight by TruGlo provides shooters a nearly indestructible sight that is virtually always visible. The rust-proof Fortress Finish protects the CNC-machined steel body, while the illuminating elements are encased in a capsule that is chemical and shock resistant. TFX sights glow in the dark and require no batteries. Compact snag-free design Impervious to oils, chemicals, cleaning solvents and ultra-sonic cleaning processes Unmatched visibility in all shooting conditions This TFX tritium sight set is compatible with the CZ 75 Series but is NOT compatible with the CZ 75 Tactical Sport Mfg: Truglo