The Athlon Optics Sun Shade Riflescope 56mm Sunshade is a high-quality sunshade designed to help improve the performance of your riflescope. It is made of durable aluminum and features a black anodized finish that resists corrosion. The sunshade is 56mm in diameter and is compatible with the Athlon Optics Cronus BTR and Cronus BTR Brown riflescopes.The sunshade helps to reduce glare and reflections from the sun, which can improve image clarity and contrast. It also helps to prevent the sun from heating up the air inside the riflescope, which can cause the air to expand and distort the image.The Athlon Optics Sun Shade Riflescope 56mm Sunshade is an easy-to-install accessory that can help to improve the performance of your riflescope. It is a must-have for any shooter who wants to get the most out of their riflescope.If you are looking for a high-quality sunshade to help improve the performance of your riflescope, the Athlon Optics Sun Shade Riflescope 56mm Sunshade is a great option. It is made of durable materials, is easy to install, and can help to improve image clarity and contrast.