The Magpul MBUS Pro Flip Up Back Up Sight has been created to make sure that you have a great flip up sight that will not let you down in the field. This Rifle Sight from Magpul Industries is a Melonite-finished all-steel back up sighting solution that delivers maximum functionality and strength with minimum bulk at a price that's even smaller than its size. The dual aperture, windage adjustable rear and no-tool, elevation adjustable front excel in all 1913 Picatinny rail mounting applications, including rail-height gas blocks. Positive detents keep the Magpul Industries MBUS Pro Flip Up Sights at standard AR sight height when deployed, and so low when they are stowed that you'll never notice them until they're needed. The narrow width of the Magpul MBUS Pro Sight is compatible with most IR aiming laser and light installations for the professional user. Specifications for Magpul Industries MBUS Pro Flip Up Sights: Manufacturer: Magpul Industries Color: Black Condition: New Rear Aperture Size: 0.19 in Sight Mounting Orientation: Top Mounted Gun Model: M16, AR-15 Deployable: Yes Fabric/Material: Steel Front Material: MBUS Pro Attachment Type: Picatinny Height: 0.37 in Length: 2.1 in Illumination Type: Non-Illuminated Gun Type: Rifle Illumination Color: None Hand: Ambidextrous Mount Type: Picatinny Adjustment Click Value: 0.5 MOA Objective Aperture: 0.07 mm Weight: 1.8 oz Ring Height: 1.41 in Features of Magpul Industries Mbus Pro Front Flip Sight Blk MAG275: All steel construction Steel, rectangular sight post selectable between Match and Standard widths .040in Match width for increased precision .060in Standard width for maximum visibility Case hardened and finished with Melonite QPQ for extreme resistance to wear and corrosion Mounts on any MIL-STD-1913 Picatinny/STANAG 4694 rail including receiver-height gas blocks Elevation adjustment knob - no tools required Positive detents in both the up and down positions as well as on the elevation knob Standard AR sight height when deployed NOTE: All MBUS Pro Front Sights now come factory-equipped with the Enhanced Front Sight Post. There is no need to order one separately unless you are retrofitting an older MBUS Pro front sight. Enhanced Front Site Posts are not compatible with standard MBUS polymer sights. Package Contents: Magpul MBUS Pro Flip Up Back Up Sight