DealsGunsAmmo
Tactical Surplus USA© Tactical Surplus USA
10Deal ScoreIn Stock

FAB Defense FXRBS Rear Back-Up Sight for AR-15/ M16/ M4 Dual Aperture Low Folded Profile Spring-Locked Deployment Black Polymer & Metal

$42.58
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Brand
FAB Defense
Color
Black
Category
Accessories
Platform
AR-15
Mount Type
Picatinny Rail
Accessory Type
Optics & Sights
UPC
7290105941992
MPN
FXRBS

Overview

The FAB Defense RBS is a durable, low-profile rear backup sight designed for AR-15 platforms, the FAB Defense KPOS, and any firearm equipped with a 1913 Picatinny rail. It features an instant spring-locked deployment mechanism and a dual-aperture design, offering a 3mm aperture for low-light conditions and faster target acquisition, and a 1.5mm aperture for improved accuracy. The sight’s ergonomic, angel-wing-shaped shroud helps center the image with any front sight. When paired with a matching FAB Defense FBS front sight, it creates a precise optical tunnel to enhance aiming speed and accuracy. The unit is constructed from high-grade polymer and metal, and allows for rapid, tool-less windage adjustments. Its low folded profile is designed to prevent snagging on gear or webbing.

Price & Stock History

Price — 90d
Listings In Stock — 30d

Reviews

No review data was found for this product.

Listings

Tactical Surplus USABest Deal
In Stock
$42.58
Hinterland Outfitters
No Stock
$46.00
Tactical Surplus USA
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$50.24
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$53.99
MidwayUSA
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$55.20
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$55.20
Armed In Michigan
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$55.20
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City Arsenal
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Palmetto State Armory
In Stock
$55.99
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