The Butler Creek Flip-Open Scope Cover #51 (30510) fits scopes with an objective diameter of 2.575" and opens with a touch of the thumb. The flip cap creates a watertight airtight seal which can be used in most extreme conditions.

Features:

• Fast, Flip-Open™ design keeps 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 and moisture.
• Tested to –40°F.