The TruGlo TFO Fiber-Optic/Tritium Sight Set (brand part number TG131GT1) equips a wide range of Glock 17, 17L, 19, 19X, 22, 23, 24, 26, 27, 33, 34, 35, 39, and 45 pistols (except MOS models) with TruGlo’s TFO technology, pairing a fiber-optic front and rear with tritium night sights underneath for a consistently bright sight picture day or night. The fiber optic gathers ambient light for a bright dot in daylight, while the tritium vial takes over once the light fades, so a shooter gets one sight picture instead of switching references between conditions. TruGlo builds the housing low-profile and snag-resistant so it fits standard holsters without catching on the draw, and the fiber measures 0.060 inches in diameter for a crisp, visible dot.

Key Specifications

• Pairs fiber-optic technology for bright daylight visibility.
• Pairs tritium night-sight technology for low-light visibility.
• Delivers a consistently bright sight picture day or night.
• Built with a snag-resistant design that fits standard holsters.
• Fiber optic measures 0.060 inches in diameter.
• Built in a Fiber Optic front/rear sight configuration.
• Compatible with a broad range of Glock 17/17L/19/19X/22/23/24/26/27/33/34/35/39/45 models.
• Excludes MOS slide-cut variants.
• Delivers the same bright sight picture whether shooting in daylight or near-total darkness.

Frequently Asked Questions

What Glock models does this fit? A broad range including the 17, 17L, 19, 19X, 22, 23, 24, 26, 27, 33, 34, 35, 39, and 45, except MOS models.

How does TFO work day and night? A fiber optic gathers light for a bright dot in daylight, and a tritium vial underneath glows once ambient light fades.

Will this fit my holster? Yes, the low-profile, snag-resistant housing is built to fit standard holsters.

Buy the TruGlo TFO Fiber-Optic/Tritium Sight Set – Glock 17/17L/19/22/23/24/26/27/33/34/35/39/45

Get one sight picture that works in daylight and after dark. Order it from our Truglo lineup, part of our gun sights selection, at our Lubbock, Texas gun shop for fast, direct shipping.