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PLEASE EMAIL US olympiaarms@gmail.com or call FOR DETAILS. By Appointment only. firearm sales in Maine. Southern Maine FFL

FAB Defense

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

Product Code : 7290105941992

$54.00
7 left in stock

Mfg Item #: FXRBS

Available Online
Secure online ordering

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.

TypeFolding Rear
StyleFolding Rear Sight
Firearm FitAR-15
Frame ColorBlack
Firearm TypeAR Platform
Frame MaterialPolymer/Metal
Windage AdjustmentYes

Determined at checkout.