TruGlo TG231AR1 Tritium Front Sight Black Green AR-15 Gas Block

The TruGlo TG231AR1 Tritium Front Sight delivers constant illumination for AR-15 platforms through self-luminous tritium technology. This gas block height sight provides consistent aiming reference in complete darkness without batteries or external light sources. Professional shooters and tactical operators rely on tritium sights for their 12-year guaranteed illumination lifespan.

What Makes This Different

Unlike fiber optic sights that require ambient light, this tritium front sight maintains bright green visibility in total darkness. The sealed tritium vial produces consistent illumination equivalent to a watch face, remaining visible through smoke, dust, and low-light conditions. Standard iron sights become useless in darkness, while this sight maintains full functionality regardless of lighting conditions.

Key Features

• Self-luminous tritium vial provides 12-year guaranteed illumination
• Gas block height compatible with standard AR-15 configurations
• Bright green tritium color optimized for human eye sensitivity
• Machined steel construction withstands recoil and impact
• Standard front sight post threading fits most AR-15 gas blocks
• No batteries required - completely self-contained illumination system
• Sealed tritium capsule protected against moisture and debris

This sight maintains accuracy during extended shooting sessions where traditional sights fade into shadows. Law enforcement officers appreciate the consistent sight picture during building searches and vehicle stops. Competitive shooters gain advantage in early morning or evening matches when natural light diminishes. The tritium remains equally bright whether transitioning from bright sunlight to indoor environments or maintaining target acquisition during dawn and dusk hunting hours.

Technical Specs

• Height: Gas block standard (.625" diameter compatibility)
• Tritium color: Green (peak visibility wavelength)
• Illumination lifespan: 12 years minimum brightness guarantee
• Construction: Machined steel with protective tritium housing
• Threading: Standard AR-15 front sight post
• Finish: Matte black non-reflective coating
• Installation: Requires front sight adjustment tool

This tritium front sight transforms any AR-15 into a capable low-light platform without adding bulk or complexity. The 12-year tritium guarantee ensures reliable performance throughout the rifle's service life. Professional-grade construction meets the demands of duty use while remaining affordable for civilian applications.