The Butler Creek Flip-Open Scope Cover – Size 17 Objective provides robust environmental protection for riflescope front lenses without slowing down target acquisition. Engineered to fit scope objective bells with a nominal outside diameter of 1.612 inches (40.90 mm), this protective cap creates an airtight, water-resistant friction seal against abrasive dust, rain, mud, and debris. Its spring-assisted hinge keeps the cover flat against the scope body when opened, ensuring silent operation that will not alert game in the field.

Key Features

• Instant Dual-Tab Access: Features ambidextrous opening tabs that allow left- and right-handed shooters to flick the cover open with a single finger or thumb movement.
• Environmental Lens Sealing: Creates a tight friction-fit seal over the front glass to prevent dust intrusion and moisture damage during transit and field use.
• Silent Spring Mechanism: The stainless steel spring hinge opens rapidly and holds the cover securely out of the line of sight without producing loud clicking noises.
• All-Weather Reliability: Built from durable polymer tested to function reliably in extreme cold environments down to -40 °C (-40 °F).
• Lightweight Profile: Weighs less than 1 oz (< 28.3 g), adding virtually no bulk to the rifle setup while requiring only 2 mm to 3 mm of clearance over the barrel.

Product Specifications

• Target Objective Diameter: 1.612 inches (40.90 mm)
• Fit Range: 1.602 inches to 1.637 inches (40.65 mm to 41.54 mm)
• Weight: Less than 1 oz (< 28.3 g)
• Material: Semi-flexible polymer collar with a rigid lid and steel spring hinge
• Minimum Operating Temperature: -40 °F (-40 °C)
• Power Requirements: None (fully mechanical)

Who is the Butler Creek Flip Open 17 Objective for?

• Hunters in Dusty or Wet Environments — Requires protection against abrasive particulate matter and rain via a sealed polymer riflescope objective flip cover engineered specifically for scope bells measuring 1.612 inches (40.90 mm) in outer diameter.
• Target Shooters and Field Hunters in Extreme Climates — Requires rapid, one-touch optic deployment in sub-zero conditions supported by a silent spring-loaded hinge tested to function down to -40 °C (-40 °F) while adding less than 1 oz to total firearm weight.

Less suitable for: Rifle optics with an objective bell outer diameter falling outside the 1.602 in to 1.637 in (40.65 mm to 41.54 mm) range, which require an alternate-sized objective flip cover, or extreme environments operating consistently below -40 °C (-40 °F).