Butler Creek Flip-Open Eyepiece Cover, Black Polymer, Size 03A, 1.33"/33mm (Model 20030)

The Butler Creek Flip-Open Eyepiece Cover (Model 20030) is a Size 03A protective cover sized for 1.33"/33mm eyepieces. This simple accessory solves a real problem for hunters and range shooters: keeping your scope's eyepiece lens clean, dry, and dust-free when you're not looking through the glass. Whether you're glassing from a stand, moving between shooting positions, or storing your rifle between seasons, lens damage from moisture, dirt, or accidental contact degrades your optics and your shot—and replacement lenses aren't cheap.

Built from durable black polymer, the cover is weatherproof and designed to stay on your scope without getting in your way. The flip-open design means you don't remove the cap and lose it in the field; finger pressure springs it open and out of sight when you're ready to shoot. Size 03A fits eyepieces measuring 1.33 inches (33mm) in diameter. If you're not sure your scope will fit, measure your eyepiece before ordering—Butler Creek offers multiple sizes, and getting the fit right matters.

This is a straightforward protective accessory, not a quick-detach system or fancy tactical kit. You get what you need: weatherproof lens protection that doesn't complicate your rifle or slow you down in the field. Pair it with a matching objective lens cover (sold separately) to fully protect both ends of your scope.

Key Features

• Flip-open design springs out of the way with finger pressure—no loose caps to lose
• Weatherproof and dust-proof polymer construction protects against moisture and debris
• Sized for 1.33"/33mm eyepieces (Size 03A)
• Black polymer finish matches modern rifle aesthetics
• Lightweight and low-profile; won't interfere with scope mounting or cheek weld

Specifications

Frequently Asked Questions

Will this eyepiece cover fit my scope?

The Butler Creek Size 03A cover fits eyepieces with a 1.33"/33mm diameter. Measure your scope's eyepiece end before ordering—it's the only way to be sure. Butler Creek makes several sizes, and getting the fit right ensures the cover will stay secure and protect your lens properly.

Does this cover both the eyepiece and objective lens?

No, this is an eyepiece cover only. The objective lens cover is sold separately. To fully protect your scope, you'll need to purchase a matching Size 03A objective cover as well.

How do I open the cover when I'm ready to shoot?

The flip-open design uses finger pressure to spring the cover up and out of the way. Once open, it stays clear of your line of sight so you can acquire your target without removing the cap and managing it separately.