FAB Defense Top Mounted Deployable Front Sight Black. These AR 15 Parts from FAB Defense have been designed to provide an extreme optical advantage when paired with the FAB Defense RBS Rear Back-up Sight. The FAB Defense Front Polymer Flip-up Back-up Sight is easily elevated using pins and can be quickly adjusted without tools. Specifications for FAB Defense Top Mounted Deployable Front Sight: Manufacturer: FAB Defense Additional Features: Elevation Adjustment Condition: New Sight Mounting Orientation: Top Mounted Sight Position: Front Gun Model: M16 AR-15 M4 Gun Make: AR Platform Front Sight Color: Black Rear Sight Color: Front Sight Only Deployable: Yes Fabric/Material: Polymer Height: 14 mm 0.55 in Length: 52 mm 2.05 in Illumination Type: Non-Illuminated Illumination Color: None Hand: Ambidextrous Weight: 25 g 0.055 lb Width: 32 mm 1.26 in Mount Type: Picatinny Features of FAB Defense Top Mounted Deployable Front Sight: 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 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 Package Contents: FAB Defense Top Mounted Deployable Front Sight What firearm models does the manufacturer say FAB Defense Top Mounted Deployable Front Sight is compatible with? The manufacturer says that FAB Defense Top Mounted Deployable Front Sight is compatible with AR-15 M4 M16FAB Defense FX-FBS: Top Mounted Deployable Front Sight Black