Butler Creek Flip-Open Eyepiece Cover - Black Polymer, Size 01 (1.34"/34.10mm)

The Butler Creek Flip-Open Eyepiece Cover in Size 01 is a straightforward way to keep dust, moisture, and debris off your scope's eyepiece lens when you're in the field or storing your rifle between hunts. Sized for eyepieces measuring 1.34 inches (34.10mm) in diameter, this black polymer cover uses a simple spring-loaded flip mechanism—just press it with your finger and it swings open and out of the way when you need to glass. No fiddling with caps or sleeves, no fumbling in dim light. It's the kind of small detail that protects your optics investment without adding weight or complexity to your setup.

Built from durable black polymer, the cover is weatherproof and designed to shed moisture, dust, and the occasional bump that comes with hunting and backcountry use. Size 01 fits standard eyepieces on most hunting and tactical scopes in that 1.34-inch diameter range, but getting the fit right is important—measure your eyepiece diameter against the chart before ordering to ensure compatibility. The objective lens gets its own separate cover (sold independently), so you can protect both ends of your scope if needed.

Whether you're running a long-range hunting rig, a tactical build, or a general-purpose hunting scope, this eyepiece cover is a cheap insurance policy against scratched or fogged glass. It's the kind of accessory serious shooters don't think about until the day they wish they'd installed one.

Key Features

• Spring-loaded flip-open design—press with a finger, cover swings up and out of the way
• Black polymer construction resists moisture and dust in field conditions
• Fits eyepieces with 1.34-inch (34.10mm) diameter
• Lightweight and compact—no bulk on your scope
• Objective cover sold separately for complete lens protection

Specifications

Frequently Asked Questions

How do I know if Size 01 will fit my scope?

Measure the outside diameter of your scope's eyepiece. Size 01 is designed for eyepieces that are 1.34 inches (34.10mm) in diameter. Butler Creek publishes a sizing chart—check it before ordering to confirm the right fit for your optic.

Do I need a separate cover for the objective lens?

Yes. This cover protects only the eyepiece. Butler Creek objective covers are sold separately, so you can protect both ends of your scope if desired.

How does the flip-open mechanism work?

The cover uses a spring-loaded design. A light press with your finger causes it to spring open and flip out of your line of sight, so you can get to your eyepiece quickly without removing or unscrewing anything.

Will this work on hunting and tactical scopes?

Yes, provided your scope's eyepiece matches the 1.34-inch diameter specification. This cover is made for the kind of abuse field use dishes out, whether you're hunting or at the range.