Shop Our Spring Sale! New Deals Added Daily!

Fab Defense Rear Back-Up Sight AR-15, M4, M16 Folding

The Fab Defense Rear Back-Up Sight is lightweight and durable, providing enhanced visibility and accuracy. This sight features a long-lasting folding style and high-grade polymer/aluminum frame. It is compatible with the AR-15, M4, M16. Find the best prices on sights at GrabAGun!
$43.99
In stock
SKU
GAG_GSS-fx-rbs-349440
More Information

Fab Defense Rear Back-Up Sight Black Features

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.

Fab Defense Rear Back-Up Sight Black Specifications 

  • Model: Rear Back-Up Sight
  • Firearm Type: Rifle
  • Firearm Fit: AR-15, M4, M16
  • Style: Folding
  • Frame Color: Black
  • Frame Material: Polymer / Aluminum
  • Weight: 1.05 oz
More Information
Condition New in Box
Finish Per Color Black
Manufacturer Fab Defense
Manufacturer Part Number FX-RBS
Model Rear Back-Up Sight
Type Rifle Sights
UPC 7290105941992

WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV

Questions And Answers
Reviews
Due to increased state legislation around firearms, you must be 18 to access our site.
Are you at least 18 years old?