TFX tritium sights are full of features, while remaining compact. The snag-free design also offers a longer sight radius than the original TFO sight. The CNC-machined steel exterior features the Fortress Finish, a rust-proof coating making the sight virtually impervious to chemicals, oils, cleaning solvents, and ultra-sonic cleaning methods. The illumination components of the TFX tritium sights are fully contained in a shock and chemical-resistant capsule, making them almost indestructible. A white ring surrounds the front sight for maximum visibility Battery-free operation Unmatched visibility in all shooting conditions This TFX tritium sight is compatible Mfg: Truglo