AmeriGlo GL121 Classic Tritium Sight Set Glock Green/Yellow

The AmeriGlo GL121 Classic Tritium Sight Set transforms low-light shooting accuracy with self-illuminating tritium inserts that require no batteries or external light sources. This configuration pairs a green tritium front sight with a yellow tritium rear sight, creating optimal contrast for rapid target acquisition in challenging lighting conditions.

What Makes This Different

Unlike standard iron sights that become invisible in darkness, the GL121 features genuine Swiss tritium gas tubes that glow continuously for 12+ years. The contrasting green front and yellow rear configuration follows proven three-dot alignment principles while the different colors help shooters distinguish front from rear instantly. White outline rings around each tritium insert enhance visibility in daylight conditions, making these sights effective 24/7.

Key Features

• Green tritium front sight with white outline for rapid target acquisition
• Yellow tritium rear sight with white outline for enhanced contrast
• Swiss tritium inserts rated for 12+ years of continuous illumination
• Steel construction with corrosion-resistant finish
• Standard Glock dovetail cuts for direct installation
• Low-profile design prevents snagging on clothing or holsters
• No batteries or maintenance required

Field testing demonstrates consistent point-of-impact accuracy across temperature ranges from -20°F to 140°F. The tritium maintains brightness levels sufficient for precise shot placement in complete darkness, while the white outlines ensure fast sight picture acquisition in bright sunlight. Law enforcement agencies report improved qualification scores when officers transition from standard sights to this tritium configuration.

Technical Specs

• Compatibility: Most Glock pistol models with standard dovetails
• Front sight: Green tritium with white outline
• Rear sight: Yellow tritium with white outline
• Construction: Machined steel with protective coating
• Tritium half-life: 12.3 years (industry standard)
• Installation: Requires sight pusher tool or gunsmith
• Country of origin: USA
• Warranty: Limited lifetime warranty on construction

Professional installation ensures proper sight alignment and zero retention. The GL121 represents a proven upgrade path for shooters who demand reliable performance across all lighting conditions without the complexity of electronic optics.