Butler Creek Flip Open #13 Eye - Scope Cover Black

FEATURES
-1.570" eye piece
-Fast, flip-open design - keep your eye on the target
-Silent spring hinges won't spook game
-Water-tight, custom-fit friction mounts anchor them to your scope
-Air-tight semi-O-ring keeps out dust & moisture
-Tested to -40°F
-Truly ambidextrous
-Weigh less than an ounce