ZeroTech Sun Shade Features The ZeroTech Sun Shade extends 3 inches in front of a compatible 50mm objective lens blocking stray light that would otherwise enter the scope from the side and create glare across the sight picture. By cutting down that glare the shade helps the shooter maintain a sharper higher contrast view of the target which can matter in open country or bright midday conditions. It is machined from aluminum for a rigid lightweight structure that will not add meaningful weight to the rifle. A matte black finish keeps the shade from reflecting light itself maintaining a low visual profile in the field. This sun shade is built to fit a specific list of ZeroTech models including the Thrive HD 2.5-15x50mm several PHRII 50mm variants the PHRII Trace 3-18x50mm and the R3 and R3 Trace Advanced 4.5-27x50mm scopes. Threading onto the objective housing takes only a moment and requires no tools so shooters can add or remove it as lighting conditions change. Sold as a single unit it is a simple affordable way to extend the usability of a compatible ZeroTech scope into bright glare prone environments. For hunters and shooters already running one of these ZeroTech optics this sun shade is a worthwhile accessory to have on hand. ZeroTech Sun Shade Specifications Manufacturer: ZeroTech Model: Sun Shade Type: Lens Shade Size: 50mm / 3 Material: Aluminum Finish: Matte Color: Black Count: 1 Compatible Hosts: Thrive HD PHRII PHRII Trace R3 R3 Trace Advanced 50mm Scopes Warranty: Mfg Lifetime Available At: GrabAGun