Truglo’s TFX sights (part no. TG-TG13SG4A) are built for SIG Sauer P365 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.

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 SIG Sauer P365 pistols.
• 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.
• Snag-resistant profile sized to fit standard handgun holsters.
• Manufactured by Truglo.
• Ships at approximately 0.09 lb.

Frequently Asked Questions

Does this sight set fit my SIG P365? This specific TFX set is machined to fit SIG Sauer P365 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.

How long does the tritium glow last? Tritium sight inserts typically stay bright for several years before the glow fades enough to need replacement; Truglo’s fiber-optic front stays usable in daylight regardless.

Buy the Truglo TFX Tritium/Fiber-Optic Day/Night Sights – SIG P365

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