HiViz GLN521 Green LitePipe Sight Insert with Orange Ring

The HiViz GLN521 Green LitePipe sight insert transforms standard iron sights into high-visibility aiming systems for faster target acquisition in varying light conditions. This replacement sight insert delivers enhanced visibility through HiViz's proven LitePipe technology, gathering ambient light to create a bright aiming point.

What Makes This Different

The GLN521 utilizes HiViz's proprietary LitePipe material that collects and channels available light, creating a glowing sight picture without batteries or external power sources. Unlike standard black iron sights that can disappear in low light, this green LitePipe maintains visibility from dawn to dusk. The included orange interchangeable ring allows shooters to customize contrast and visibility based on lighting conditions and personal preference.

Key Features

• Bright green LitePipe insert for enhanced target acquisition speed
• Interchangeable orange ring for contrast customization
• No batteries required - uses ambient light collection
• Precision-machined for consistent sight alignment
• Weather-resistant construction for outdoor use
• Compatible with HiViz GLN series sight systems
• Quick installation without gunsmith modification

Field performance shows significant improvement in sight acquisition time compared to traditional black sights, particularly during dawn and dusk hunting periods. Competition shooters benefit from the consistent sight picture across varying outdoor lighting conditions. The green wavelength provides optimal contrast against most target backgrounds while remaining visible in bright sunlight conditions.

Technical Specs

• Model: GLN521
• Color: Green LitePipe with orange ring
• Material: HiViz LitePipe polymer construction
• Compatibility: HiViz GLN series sight systems
• Installation: Drop-in replacement design
• Light source: Ambient light collection technology
• Weather rating: All-weather performance

This sight insert represents a practical upgrade for shooters seeking improved visibility without the complexity of electronic sights. The proven LitePipe technology has earned recognition among hunters, competitive shooters, and law enforcement professionals who require reliable sight performance across diverse lighting conditions.