The 50mm riflescope sunshade is a must-have accessory for any avid shooter who uses a riflescope. This sunshade is designed specifically to fit a scope with a 50mm objective lens. The sunshade reduces glare and prevents unwanted reflections from the sun or other light sources. This means shooters achieve clearer and more accurate shots, even in bright or harsh lighting environments. Sightmark Core 2.0 TX/Presidio 50mm Riflescope Sunshade SM19047