Ultradyne C4 Flip-Up Front Sight Picatinny Mount Black. Using the C4 Front Sight in conjunction with the C4 Rear Sight creates a perfectly concentric circle-within-circle sight picture that allows the shooter to see the target not cover it enables faster sight acquisition reduces the effect of parallax and gives the ability to consistently shoot accurately out to 600 yards and beyond. All with compact foldable iron sights. Interchangeable front sight apertures provide options for any application. Specifications for Ultradyne C4 Flip-Up Front Sight: Manufacturer: Ultradyne Color: Black Additional Features: 12 MOA Condition: New Condition Quality: Excellent Condition Details: Other Sight Mounting Orientation: Top Mounted Sight Position: Front Gun Make: AR Platform Front Sight Color: Black Rear Sight Color: Front Sight Only Front Post Shape: Aperture Deployable: Yes Fabric/Material: 7075 Aluminum 4140 CrMo Steel Illumination Color: None Hand: Ambidextrous Last Chance: Yes Attachment Type: Picatinny Mount Type: Picatinny Features of Ultradyne C4 FOLDING FRONT SIGHT: Purely concentric sight picture with an inner aperture and outer circle for easy alignment Apertue sights gives a shooter the ABILITY to focus 100percent on the target and uses the brains natural inclination to center the target which is done effortlessly Reduces Parallax Effect Windage-Adjustable for zeroing (1/2 MOA/Click) which guarantees that the rear sight windage is perfectly centered when at zero for maximum in windage adjustment in either direction along with easy return to zero Tool-less elevation adjustment that is always perfectly concentric with the outer circle 28 MOA Total 1-1/4 MOA/1/4 Turn Includes 12 MOA Aperture Front Post Multiple Front Sight Post Options Available Strategic use of materials to maximize stregnth and minimize weight 4140CrMo with Nitride Finish / CNC Machined 7075 Aluminum Package Contents: Ultradyne C4 Flip-Up Front Sight Ultradyne UD10440: C4 Flip-Up Front Sight Picatinny Mount Black