The new and improved iO Cover from Tango Down is an effective and lightweight protective cover your Aimpoint T1, H1, or R1 optic. Integral lens covers nest together when open, ensuring they won't flop around under recoil or fall off to get lost in the field, while the low profile design protects your optics without the risk of snags. The durable thermoplastic polyurethane material resists solvents, oils, and UV exposure while remaining receptive to most spray paints and hydro drips, providing excellent protection without impacting customization. Features: Protects body, windage adjustment cap, and lenses from harsh environments One handed operation and nesting caps Durable construction Accepts most spray paints and hydrodips Weighs just 0.8 oz