Daniel Defense Rail Mounted Fixed Front Sight The lightweight, streamlined design of the Daniel Defense Rail-Mount Fixed Front Sight makes it unobtrusive and snag-free. The one piece design makes it easy to install on any MIL-STD-1913 rail and it secures with a slotted fastener threaded into a self-locking stainless steel thread insert. Special attention was paid to facilitate the use of compact weapon-lights forward of the sight, such as the X300, TLR-1, etc. The concave radius on either side of the sight is a great place to rest your thumb for easy, ambidextrous activation of the light.Machined from 6061-T6 aluminum and military specification hard anodized, our Rail-Mount Fixed Front Sight is both lightweight and durable and is the perfect complement to our A1.5 Fixed Rear Sight.Features:One Piece Streamline DesignUses Standard AR15 AperturesEasy to use in conjunction with compact, pistol-type weapon lightsSlotted Screws AttachmentLight weightMaterials & ConstructionPrecision CNC machined from Aircraft Grade 6061-T6 Aluminum and Military Specification Type III Hard Coat Anodized for a rock hard lasting finish. The Rail-Mount Fixed Front Sight weighs only 1.1 Ounces.Aircraft Grade 6061-T6 AluminumMilitary Specification Type III Hard Coat Anodized1.1 Ounces!Made in the USA!