FAB Defense FRBS Offset Folding Backup Rifle Sights Kit – Black | Picatinny Rail Mount

The FAB Defense FRBS Offset Folding Backup Sights Kit delivers a reliable, low-profile backup sighting solution engineered for shooters who run magnified optics and need fast, accurate iron sight transitions during close-quarters battle (CQB) scenarios. Mounting at a 45-degree offset on any standard 1913 MIL-STD Picatinny rail, this kit allows you to stay on target without removing or adjusting your primary optic.

Built from durable fiberglass-reinforced polymer and metal, the FRBS kit features a sleek, snag-free profile with minimal protruding parts — ideal for dynamic shooting environments. Both the rear backup sight (RBS) and front backup sight (FBS) fold flat when not in use and deploy instantly when needed. Tool-free windage adjustment on the RBS and tool-free elevation adjustment on the FBS keep your zero dialed in quickly and easily. Available in right and left side configurations to suit any shooting stance or platform setup.

**Key Features:**
– Designed for use alongside magnification optics in CQB applications
– Sleek, low-profile folding design with minimal snag points
– RBS: Tool-free manual windage adjustment
– FBS: Tool-free manual elevation adjustment
– Available in right and left side offset variations
– Fiberglass-reinforced polymer and metal construction
– Compatible with 1913 MIL-STD Picatinny rails

**Specifications:**
– Length: 52 mm
– Width: 32 mm
– Height: 14 mm
– Deployed Length: 30 mm
– Deployed Height: 42 mm
– Weight: 30 g
– Color: Black

Order the FAB Defense FRBS Offset Folding Backup Sights Kit online today from VanTon Arms and take advantage of our competitive pricing and fast nationwide shipping.