Truglo’s TFX sights (part no. TG-TG13GL2A) are built for Glock 20, 21, 25, 28, 29, 30, 31, 32, 37, 40, and 41 pistols. They combine Swiss tritium with fiber optics in a single sight picture, so the front sight stays bright under a fiber-optic glow by day and the tritium capsule keeps glowing after the lights go out, using a white-outlined front sight paired with a green rear sight for a fast three-dot picture.

The illuminating elements are sealed inside a chemical- and shock-resistant capsule, and the steel body carries Truglo’s rust-resistant FORTRESS finish. The design is snag-resistant and sized to work with standard holsters made for the host pistol.

Key Specifications

• Precision-fit for Glock 20, 21, 25, 28, 29, 30, 31, 32, 37, 40, and 41 pistols.
• Comes with a white-outlined front sight and a green rear sight for a fast three-dot picture.
• Fully protected TFO (tritium + fiber-optic) technology encapsulated in a virtually indestructible housing.
• Impervious to oils, chemicals, cleaning solvents, and ultrasonic cleaning processes.
• Delivers a fast, accurate sight picture in both bright daylight and low light.
• Powered by genuine Swiss tritium for maximum night-time brightness; no batteries required.
• Concealed fiber-optic rod can’t be seen by the target down range.
• Rust-resistant FORTRESS finish protects the CNC-machined steel sight body.
• Manufactured by Truglo.
• Ships at approximately 0.11 lb.

Frequently Asked Questions

Does this sight set fit my Glock 20/21/29 Family? This specific TFX set is machined to fit Glock 20, 21, 25, 28, 29, 30, 31, 32, 37, 40, and 41 pistols; Truglo sells other TFX variants for other pistols, so double-check your exact model before ordering.

Do these sights require batteries? No. The tritium capsules glow on their own with no batteries required, while the fiber-optic rod gathers ambient light during the day.

Why are the front and rear sights different colors? The white-outlined front sight draws the eye first for a fast sight picture, while the green rear sight gives a clear contrast reference without competing for attention.

Buy the Truglo TFX Tritium/Fiber-Optic Day/Night Sights – Glock 20/21/29 Family

Order it from Schaefer Defense, see more from Truglo, or browse the full Gun Sights lineup for other options.