ESS Crosshair Ballistic Eyeshields Replacement LensClear NSN-4240-01-632-5140. This ESS Crosshair Tactical Eyeshields Replacement Lens are made from extra-thick 2.4mm high-impact polycarbonate that provides 100percent UVA/UVB protection. ESS Crosshair Tactical Eyeshields Replacement Scratch-resistant Lenses will shield your eyes and provide distortion-free optical clarity throughout the entire field of view as well. Specifications for ESS Crosshair Tactical Eyeshields Replacement Lens: Manufacturer: ESS Age Group: Adults Quantity: 1 Package Contents: ESS Crosshair Ballistic Eyeshields Replacement Scratch-resistant Lenses ESS 740-0479: Crosshair Ballistic Eyeshields Replacement LensClear