Rear Back-Up Sight for Picatinny Rail, rbsb – FAB Defense

Description

Looking for a reliable Rear Back-Up Sight for Picatinny rails? The FAB Defense RBS is the perfect choice. This low-profile, dual-aperture rear sight is designed for accuracy and speed. It works with any front sight and ensures precise targeting and rapid acquisition.

Whether you’re using it as your primary or backup sight, the RBS delivers exceptional performance.

The FAB Defense RBS features a unique ergonomic shroud that centers your image. When paired with the FAB Defense FBS Front Sight, it creates an optical tunnel for even greater precision.

Switching between two apertures is quick and easy to suit your shooting conditions. The larger 3mm aperture is ideal for low light and longer eye relief. The smaller 1.5mm aperture is perfect for shorter eye relief and maximum accuracy.

The RBS mounts seamlessly on 1913 Picatinny rails, making it ideal for M4, AR-15, and M-16 platforms. Its spring-locked deployment mechanism ensures durability and reliability. Windage adjustments are fast and tool-free, with a secure detent locking system. Crafted from high-grade polymer and metal, the RBS is built to withstand tough conditions.

Available in black, olive drab green, and desert tan, it also offers a sleek, snag-free design.

Complete a set with the FBS Front Backup Sight.

FAB Defense RBS Rear Back-Up Sight for Picatinny  – Features:

• Compatible with all 1913 Picatinny rails.
• Dual apertures: 3mm for low light, 1.5mm for greater accuracy.
• Ergonomic shroud centers the view for precise aiming.
• Optical tunnel when paired with the FBS Front Sight.
• Low folded profile to avoid snags on gear or brush.
• Spring-locked mechanism ensures durability and reliability.
• Tool-free windage adjustment with detent locking system.
• Made from highly durable polymer and metal.
• Available in black, olive drab green, or desert tan.

Compatibility:

• All 1913 Picatinny rails

• This product is compatible with a wide variety of weapons, such as AR10, SR25, Heckler & Koch / IMI / IWI rifles, and many others.

To view the full FAB Defense catalog, click here.