Since its inception, FAB Defense has been leading in development and manufacture of the highest quality, cutting-edge tactical equipment and weapon accessories for the State of Israel's Military and Police. FAB Defense R&D department works in collaboration with Special Forces and SWAT teams worldwide to design creative, ability enhancing, no-nonsense solutions to the ongoing dynamic challenges met in the field.

The RBS is an advanced, dual aperture, durable and low-profile auxiliary rear sight. It can be used with any front sight and was designed for more accurate aiming and faster target acquisition. Windage is easily and quickly adjusted without tools. RBS is readily mounted on any 1913 Picatinny rail, making it ideal for use on M4 / AR-15 / M-16 platforms.

Specifications and Features:
Made of extremely durable high-grade polymer and metal
Can be used as primary or back-up sight
Ergonomic angel-wing-shaped shroud helps center the image with any front sight, and when used with a matching FAB Defense FBS Front Back-up Sight, it creates a precise optical tunnel that ensures more accurate aiming and faster target acquisition
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; each is instantly selectable to match conditions
Low folded profile is smooth and inconspicuous, and will not snag on gear, webbing, or brush
Concealed picatinny rail at the bottom of the stock for use with a monopod
Instant spring-locked deployment mechanism will not slip, break or deform
No tools needed for easy, rapid windage adjustments, with positive detent locking
FDE

Note: This product is new and being closed out; sold "As Is" and is not returnable to Cheaper Than Dirt. Please contact the manufacturer for warranty and assistance.