A flip-open objective lens cover for rifle scopes, the Butler Creek Size 46 (61.70mm) is designed to protect your optics from the elements without slowing you down when the moment arrives. Built from black polymer, this cover creates a water-tight and air-tight seal custom-fitted to your scope—keeping out dust and moisture in the field so your glass stays clear when it counts. The spring-hinged design opens instantly with a thumb flick, letting you stay focused downrange without fumbling with removable caps.

Hunters and long-range shooters rely on lens covers like this to guard against rain, fog, and debris during glassing sessions and the wait for your moment. The silent spring hinges won't rattle or spook game, and the friction-mount design anchors securely to your scope without tools or permanent modification. It's truly ambidextrous—works equally well from either side—and weighs less than an ounce, so it won't throw off your balance or feel like extra gear in your pack.

Tested to operate reliably down to –40°F, this cover performs in extreme cold and wet conditions. Whether you're hunting mountain elk, glassing prairie for pronghorn, or running drills at the range, the Butler Creek flip-open cover gives you glass protection that doesn't get in your way when you need to move fast.

Key Features

• Fast flip-open design—thumb-activated, no removable caps to lose
• Water-tight and air-tight seal keeps moisture and dust out of your optic
• Silent spring hinges won't alert game or interfere with your shot
• Custom-fitted friction mount anchors to your scope securely
• Truly ambidextrous—works from either side of your scope
• Lightweight—less than one ounce won't burden your rifle
• Tested to –40°F for reliable performance in harsh conditions
• Black polymer construction resists wear and weather

Specifications

Frequently Asked Questions

Will this cover fit my rifle scope?

This is a Size 46 cover with a 61.70mm objective diameter. Refer to the Butler Creek size chart to confirm your scope's objective size matches before ordering—a proper fit is essential for the water-tight seal to work.

Can I open it with gloves on?

Yes. The flip-open design is meant to be operated quickly with your thumb, and the spring mechanism is responsive enough to work even when you're wearing hunting gloves.

Does it stay attached to my scope when flipped open?

Yes. The friction-mount design keeps the cover hinged to your scope so you won't lose it. When you flip it open, it remains tethered to your optic.

Is this cover ambidextrous?

Yes, it's designed to work equally well whether you mount it on a left- or right-handed rifle setup.