Protect the riflescope objective lens from rain and sun-glare. The 2.5 and 4 inch 50mm Lens Shades can be threaded together to create custom lengths. 4 inch model variable in Gloss Matte and Silver finishes. 2.5 inch model available in Matte only. Fits all Leupold riflEscopes with 50mm objectives manufactured after 2004.