Trijicon 600178 Bright & Tough Night Sight Front AR-15 M16 Green

The Trijicon 600178 Bright & Tough Front Sight delivers tritium-powered illumination for AR-15 and M16 platforms without batteries or external power sources. This self-luminous sight maintains visibility in complete darkness while providing crisp daylight performance through its black outline design.

What Makes This Different

Tritium gas capsules provide constant illumination for 12+ years without maintenance or battery replacement. The green tritium lamp glows brighter than standard phosphorescent sights and maintains consistent brightness regardless of ambient light conditions. Machined steel construction withstands repeated impact from bolt carrier cycling and maintains zero through thousands of rounds.

Key Features

• Self-luminous tritium insert glows green for 12+ years minimum lifespan
• Black outline ring enhances sight picture definition in daylight conditions
• Machined steel housing withstands .223/5.56 recoil and cycling forces
• Standard A2 front sight post height for proper sight radius alignment
• Drop-in replacement for factory AR-15/M16 front sight posts
• Weather-sealed tritium capsule prevents moisture infiltration
• No batteries, switches, or external power requirements

Law enforcement and military personnel rely on tritium sights for consistent target acquisition across lighting transitions. The green tritium provides faster sight alignment than iron sights alone during low-light engagements. Competitive shooters benefit from the enhanced sight picture during early morning or late evening matches when ambient light varies.

Technical Specs

• Sight Type: Self-luminous tritium front sight post
• Tritium Color: Green with black outline ring
• Compatibility: AR-15, M16, and variants with A2 front sight base
• Construction: Machined steel housing with sealed tritium insert
• Height: Standard A2 front sight post dimensions
• Tritium Half-Life: 12.3 years minimum brightness guarantee
• Operating Temperature: -40°F to +160°F functional range
• Country of Origin: United States

Trijicon's reputation for military-grade night sights translates directly to this front sight post design. The 600178 eliminates guesswork in low-light scenarios while maintaining the familiar sight picture shooters expect from their platform.