FAB Defense NARBS Rear Polymer Flip-Up Backup Sight – Black

Upgrade your rifle’s sighting system with the FAB Defense NARBS Rear Polymer Flip-Up Backup Sight in Black. Engineered for both primary and backup sight applications, this rugged sight delivers reliable performance in the field without compromise.

The distinctive ergonomic angel-wing-shaped shroud naturally centers your sight picture with any compatible front sight — and when paired with the FAB Defense FBS Front Backup Sight, it forms a precise optical tunnel for enhanced accuracy and faster target acquisition.

Two instantly selectable dual apertures give you the flexibility to adapt to any shooting condition: a 3mm aperture for longer eye relief, low-light environments, and rapid target acquisition, and a 1.5mm aperture for shorter eye relief and precision accuracy at distance. Switching between them is seamless and immediate.

The low-profile folded design sits smooth and inconspicuous along your rail, resisting snagging on gear, webbing, or brush. The instant spring-locked deployment mechanism is built to withstand hard use without slipping, breaking, or deforming. Windage adjustments are tool-free and feature positive detent locking for consistent, repeatable zero retention.

Constructed from high-grade polymer and metal, the NARBS is built to endure the demands of tactical, hunting, and competitive shooting environments.

**Key Features:**
– Functions as primary or backup iron sight
– Angel-wing shroud centers sight picture; pairs with FAB Defense FBS for optimal optical tunnel
– Dual apertures: 3mm (low-light/fast acquisition) and 1.5mm (precision/accuracy)
– Low, snag-free folded profile
– Instant spring-locked deployment
– Tool-free windage adjustment with positive detent locking
– High-grade polymer and metal construction
– Finish: Matte Black

Order online today at VanTon Arms and take advantage of our competitive pricing and fast nationwide shipping.