Meprolight FUBS Flip-Up AR-15 Sight Set Orange/Green Tritium

The Meprolight USA FUBS Sight Set delivers self-illuminated backup iron sights for AR-platform rifles when primary optics fail. These flip-up sights combine Israeli tritium technology with rugged polymer construction to maintain target acquisition in complete darkness without batteries or external power sources.

What Makes This Different

Unlike standard backup iron sights, the FUBS system incorporates tritium vials that provide 12-year guaranteed illumination. The orange front sight creates high contrast against most backgrounds, while the green rear aperture offers precise alignment in low-light conditions. This dual-color configuration reduces sight picture confusion and speeds target acquisition compared to single-color tritium systems.

Key Features

• Self-luminous tritium inserts with 12-year lifespan require no batteries
• Orange front sight and green rear aperture for enhanced contrast
• Low-profile flip-up design clears optic sight lines when folded
• Reinforced polymer construction withstands repeated deployment cycles
• Standard Picatinny rail mounting fits all AR-15/M4 platforms
• Ambidextrous operation accommodates left and right-handed shooters
• Waterproof sealed tritium capsules maintain brightness underwater

Field testing demonstrates reliable function across temperature extremes from -40°F to 160°F. The sights maintain zero through thousands of folding cycles and resist impact damage during tactical operations. Law enforcement agencies report consistent performance during night raids and low-light engagements where battery-powered sights might fail.

Technical Specs

• Material: Reinforced polymer body with steel hardware
• Tritium color: Orange front, green rear
• Rail compatibility: MIL-STD-1913 Picatinny
• Operating temperature: -40°F to 160°F
• Waterproof rating: Submersible to 66 feet
• Weight: 2.1 oz combined set
• Country of origin: Israel
• Warranty: 12-year tritium guarantee

Professional operators choose Meprolight tritium sights when mission-critical accuracy cannot depend on battery life or ambient light conditions. The FUBS system provides immediate backup capability that activates instantly when primary optics are damaged or compromised.