Lucid Flash Filter Accessory For The HD7 Red Dot and the P7 4x Combat Optic Black. These Red Dot Sight Accessories from Lucid Optics are made with rugged 6061 T6 aluminum. The Lucid Optics Flash Filter Accessory will provide you with year after year of lens protection. For a great way to keep yourself hidden as well as add some addition protection to the lens of your red dot sight choose the Lucid Optics Flash Filter Accessory for HD7 Red Dot Weapon Sight. Specifications for Lucid Optics Flash Filter Accessory For HD7 Red Dot Sights: Manufacturer: Lucid Optics Color: Black Finish: T3 Mil-Spec Anodized Fabric/Material: 6061-T6 Aluminum Features of Lucid Optics Flash Filter Accessory for HD7 Red Dot: Fits HD7 Lucid Optics Red Dot Sight Add lens protection Durable Long lasting 6061 T6 Aluminum T3 Mil-Spec Anodized Package Contents: Lucid Optics Flash Filter Accessory for HD7 Red Dot Sights Lucid Flash L-FF: Filter Accessory For The HD7 Red Dot and the P7 4x Combat Optic Black