Butler Creek 30025 Flip-Open Objective Lens Cover - Black Polymer, 30mm, Size 02A

A flip-open objective lens cover built for hunters and shooters who need reliable protection without fumbling. The Butler Creek 30025 is a 30mm objective lens cover in Size 02A, engineered to shield your scope's front glass from dust, moisture, and debris—then snap open instantly when it's time to shoot. The design is straightforward: mount it once, flip it open with your thumb when the moment comes, and keep your focus on the target instead of wrestling with caps.

The cover creates a water-tight, air-tight seal around your objective lens thanks to a semi-O-ring design that friction-mounts directly to your scope without tools or permanent changes. Silent spring hinges won't rattle or alert game, and the ambidextrous flip-open mechanism works the same way whether you're left- or right-handed. At under an ounce, it adds negligible weight to your setup.

Built for serious field conditions, the Butler Creek 30025 is tested down to –40°F, so it'll function reliably in cold weather when traditional lens caps become difficult to remove with gloved hands or numb fingers. The black polymer construction resists UV damage and won't fog your glass. If you've ever missed an opportunity while fumbling with a cap, or discovered dust on your lens after hours glassing, this cover solves both problems with a simple, proven design that's been trusted by hunters and competitive shooters for years.

Key Features

• Flip-open design—thumbs-up access without removing caps
• Water-tight and air-tight seal with semi-O-ring friction mount
• Silent spring hinges to avoid spooking game
• Ambidextrous operation for left- and right-handed shooters
• Tested to –40°F for extreme cold-weather use
• Weighs less than one ounce
• Durable black polymer construction

Specifications

Frequently Asked Questions

Will this fit my 30mm scope?

The Butler Creek 30025 is sized for 30mm objectives. Size 02A is the designation for this particular cover; refer to Butler Creek's size chart to confirm Size 02A matches your specific scope model, as the same objective diameter may vary slightly across different manufacturers.

How does it stay on the scope during hunting?

The semi-O-ring design and friction-fit mount hold the cover securely in place without adhesive or tools. Once installed, it won't shift or fall off during recoil, movement, or impact.

Can I use this with gloves or in cold weather?

Yes. The flip-open design is specifically engineered for quick one-handed operation, making it ideal for cold-weather hunting when traditional caps are difficult to remove with heavy gloves. It's tested to operate reliably at –40°F and below.

Does the hinge make noise?

The spring hinges are designed to operate silently, so opening the cover won't create the clicks or snaps that might alert nearby game.