The FBS Front Back-Up Sight by Fab Defense is an advanced, low-profile, durable, auxiliary front sight. It can be used with any rear sight but has been designed to provide an extreme optical advantage when paired with the FAB Defense RBS Rear Back-up Sight. Sight pin elevation is easily and quickly adjusted without tools.

The FBS is readily mounted on any 1913 Picatinny rail, making it ideal for use on M4 / AR-15 / M-16 platforms and on the FAB Defense KPOS.

Features:

Can be used as a primary or back-up sight
Ergonomic angel-wing-shaped front shroud helps center the image with any rear sight, but when used with a matching FAB Defense RBS Rear Back-up Sight, it creates a precise optical tunnel that ensures more accurate aiming and faster target acquisition
The low folded profile is smooth and inconspicuous, and will not snag on gear, webbing, or brush
Instant spring-locked deployment mechanism will not slip, break or deform
No tools needed for easy, rapid elevation adjustments, with positive detent locking
Made of extremely durable high-grade polymer and metal

**Do not mount on a gas block

Palmetto State Armory is your top choice for tactical accessories and gear from Fab Defense and other top manufacturers!

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These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

FAB Defense Folding Front Site, Black - FX-FBS