Meprolight FUBS 404100 Flip-Up Backup Sights

Meprolight FUBS Tritium Backup Sights

The Meprolight FUBS represents a thoughtful approach to secondary sighting systems. These flip-up backup sights combine self-illuminated tritium technology with practical design, ensuring you maintain sight picture when your primary optics fail—a scenario every serious shooter must prepare for.

Key Features

Tritium Illumination

• Two tritium vials in the rear sight
• One tritium vial in the front sight
• Self-illuminated for low-light and no-light conditions
• No batteries required; tritium provides years of reliable glow

Practical Design

• Low-profile composite construction for minimal obstruction
• Spring-based locking mechanism for positive, quick deployment
• Flip into position instantly when needed
• Durable materials withstand field use and recoil

Tool-Free Adjustments

• Rear sight windage adjustment via detent knob
• Front sight elevation drum with indexed detents
• No tools required for zeroing or minor adjustments
• Mounts to any Picatinny rail with included 2.5mm hex key

Versatility

While designed as backup sights, the FUBS can serve as your primary sighting system. This flexibility makes them valuable whether you're running optics or prefer iron sights as your main aiming reference.

These sights represent the kind of redundancy that separates prepared shooters from those hoping their gear never fails.