Reddit reviews TRUGLO TFX Tritium and Fiber-Optic Xtreme Handgun Sights for Glock Pistols, Glock 42, 43

Unmatched Visibility in all shooting conditions, night or day; Glows in the Dark—no batteries or light exposure requiredFront sight Focus-Lock Ring for even faster focusTFX Sealed Capsule Design provides maximum protection and durability; Fortress Finish provides a permanent protective coating; Impervious to oils, chemicals, cleaning solvents, and ultra-sonic cleaning processesConcealed Fiber cannot be seen by target; Snag Resistant Design fits standard holstersFits Glock 42 and 43