Butler Creek Element Flip-Up Scope Cover Eyepiece #2 37-42mm Black

From MidwayUSA

The Butler Creek Element Scope Caps has taken lens protection to the next level. This modular-interchangeable scope cap can be used in any weather element the hunter is facing. Included are three lenses; black disk to minimize direct sunlight on the scope lens. A clear disk so you can see your reticle while caps are closed in rainy weather and a data disk which can provide caliber specific ballistic data. These scope caps are highly rugged and feature a ridged polymer protective lid, durable to withstands abuse and extreme heat and cold. A rubber-stretchable sleeve allows these caps to fit multiple diameters of scopes.