Fab Defense Fxrbs Rear Back-up Sight Black
SKU: C01-NARBS Product ID: 74686
FAB Defense FXRBS Rear Back-Up Sight for AR-15/ M16/ M4 Dual Aperture Low Folded Profile Spring-Locked Deployment Black Polymer & Metal
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Product information
The RBS is an advanced, low-profile, durable, auxiliary rear sight. It can be used with any front sight, but has been designed to provide an extreme optical advantage. It is readily mounted on any 1913 Picatinny rail, making it ideal for use on M4/AR-15/M-16 platforms. The sight can be used as a primary or back-up sight and the ergonomic angel-wing-shaped front shroud helps center the image with any front sight. The low folded profile is smooth and inconspicuous and will not snag on gear, webbing or brush. The dual apertures are 3mm for longer eye relief mounting, low light and faster target acquisition and 1.5mm for shorter eye relief mounting and greater accuracy. The sight is also made of extremely durable high-grade polymer and metal and has an instant spring-locked deployment mechanism that will not slip, break or deform.
Specifications
- Brand
- Fab Defense Inc.
- Model
- Rear back-up sight
- Category
- Dots
- SKU
- C01-NARBS
- Product ID
- 74686
More specifications (10)
- Gun sight rear config
- Black
- Gun sight type
- Iron sight
- Gun sight weapon fit
- Ar-15 & compatible
- Type
- Folding rear
- Frame material
- Polymer/metal
- Frame color
- Black
- Firearm fit
- Ar-15
- Style
- Folding rear sight
- Windage adjustment
- Yes
- Firearm type
- Ar platform
Shipping / FFL
Shipping and receiving dealer information.
Important: Firearm purchases are shipped to a licensed receiving FFL dealer for transfer. Customers provide the receiving dealer details during checkout.
- Shipping Type
- Ships to receiving FFL
- Dealer Information
- Provided manually at checkout
- FFL Locator
- Not included
- Processing Time
- Typically 1–3 business days
- Delivery Method
- Carrier shipment to licensed dealer
- Transfer Requirement
- Background check completed at receiving dealer
- Customer Responsibility
- Confirm dealer availability before ordering
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