The TruGlo Brite-Site Tritium Sight Set for Glock (Low) has a snag-resistant design and fits standard holsters. This model sight fits Glock 17 / 17L, 19, 22, 23, 24, 26, 27, 33, 34, 35, 38 and 39. CNC-machined, steel construction provides superior durability for combat or competition. It is high quality, self-illuminating and has tritium tubes that glow bright green so you can find your sights, even in complete darkness. Surrounding white ring shows up well in daylight. Popular, three-dot system provides fast sight alignment in high stress situations.