The Trijicon Fiber Optic Sight Set for Glock 42/43 replaces the factory plastic sights on your concealed-carry pistol with a combat-proven fiber-optic system built to boost target acquisition and confidence when it matters. If you carry a G42 or G43 for self-defense or everyday duty, upgrading to fiber sights is one of the fastest ways to improve your accuracy and sight picture without changing your gun's profile or ergonomics. Trijicon's fiber sights gather ambient light and concentrate it into a bright, sharp focus point—no batteries, no electronics, just fast reliable aiming geometry that works in any lighting condition from bright outdoor ranges to dim indoor venues.

These sights are machined to Glock's dovetail specifications, so they drop into your slide with precision fit. The front sight features a thin blade profile that speeds up target transitions while the bright-red fiber delivers instant visual feedback. The U-notch rear sight is designed for practical defensive shooting geometry, giving you a clean sight picture without the bulk of larger target-style apertures. Trijicon engineered these the same way it builds every other optic—with durability and dependability as non-negotiables. That means robust construction that handles recoil, holstering, and the occasional impact without losing zero or dimming.

Professional gunsmith installation is recommended to ensure proper fit, retention, and regulation on your specific pistol. Once installed, these sights require zero maintenance and will outlast multiple generations of shooters.

Key Features

• Fiber-optic front sight with bright-red light-gathering element for rapid target pickup
• U-notch rear sight with clean, combat-proven geometry
• Precision-cut dovetails matched to Glock G42 and G43 slides
• Durable, snag-free design suitable for concealed carry and duty use
• No battery or electronics—works in any lighting condition
• Thin front-sight blade reduces sight picture obstruction and speeds transitions

Specifications

Compatibility	Glock 42, Glock 43
Front Sight Blade Width	0.110 inch
Front Sight Height Above Slide	0.138 inch
Rear Sight Notch Width	0.125 inch
Rear Sight Height Above Slide	0.307 inch
Front Sight Color	Red fiber optic
Installation	Professional gunsmith recommended

Frequently Asked Questions

Will these sights fit my Glock 42 or 43?

Yes. These sights are precision-machined to fit the dovetail cuts on both the Glock 42 and Glock 43 slides. Professional gunsmith installation is recommended to ensure proper fit and retention.

What's included in this sight set?

The set includes a red-fiber front sight and a U-notch rear sight, both cut and finished for direct installation into your G42 or G43.

Do these sights require batteries or maintenance?

No. Fiber-optic sights gather natural ambient light—they require no batteries, charging, or electronics. They work in daylight, low light, and indoor ranges without any maintenance beyond occasional cleaning.

Is professional installation necessary?

Trijicon recommends professional gunsmith installation to ensure proper sight regulation, retention, and zero. A qualified gunsmith can verify fit and function on your specific pistol.