The Butler Creek 30210 Flip-Open Objective Scope Cover Size 21 is a proven lens protector designed to shield your optic’s objective lens from dust, moisture, and debris. Built from durable black polymer, it uses a friction-fit mount and an airtight O-ring seal to keep your glass clear in demanding weather conditions while remaining compact on the end of your scope.

This flip-open cover is sized to fit objective lenses with an outside diameter of approximately 44.1 mm, making it ideal for a wide range of hunting and shooting optics. Fast flip tabs and a silent spring hinge allow you to open the cover instantly without disturbing your surroundings, whether you are on the range or in the field. Butler Creek’s long-standing reputation for dependable, purpose-built scope accessories is reflected in this simple, reliable design.

Key Features:

• Manufacturer: Butler Creek
• Model: Flip-Open Objective Scope Cover 30210
• Type: Objective lens cover
• Size: 21
• Material: Polymer
• Color: Black
• Fits Objective Outside Diameter: 44.1 mm (1.735")
• Seal Type: Airtight O-ring, water-tight friction mount
• Hinge: Silent spring hinge with fast flip tabs