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Butler Creek Flip-Open Scope Cover Eyepiece Size 18 Polymer Black, 20180
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$11.99
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SKU: MO20180-051525201809
Overview
This eyepiece cover is built to give a scope a secure, low-profile layer of protection when you’re carrying in dust, moisture, or changing weather. Its flip-open design and one-touch button make access quick, while the silent spring hinge helps keep movement discreet in the field. The custom-fit friction mount and semi-O-ring seal are intended to hold firmly in place and help keep the scope protected between shots. It’s a practical choice for hunters and shooters who want simple, dependable coverage without adding bulk.
Why Hunters Choose the Butler Creek
Fast, Flip-open
A simple thumb press
Custom-fit Friction
Mounts help anchor the cover
Inner O-ring
Seal helps keep out dust
Silent Spring
Hinge supports quiet operation in
Ambidextrous Button
Design offers one-touch use from
Key Features
- Flip-open eyepiece cover with instant-action lid for quick thumb operation.
- Custom fit for most scopes using water-tight friction mounts.
- Air-tight semi-O-ring helps keep out dust and moisture.
- Silent spring hinge design supports ambidextrous use.
- Ergonomic button has a non-slip surface for one-touch action.
- Performs from -40 to 120 degrees F.
Best Used For
- Hunters needing a flip-open eyepiece cover for quick, one-touch scope access
- Field users wanting a custom-fit cover that helps keep out dust and moisture
- Ambidextrous shooters who prefer silent spring-hinge operation in the field
- Cold- and warm-weather hunters using gear rated for -40 to 120 degrees F
Specifications
| Air Tight | Yes |
|---|---|
| Ambidextrous | Yes |
| Color | Black |
| Design | Flip-Open |
| Eyepiece Size | 18 |
| Fit | Custom fit for most scopes |
| Material | Polymer |
| Model Number | 20180 |
| Mount Type | Custom-fit friction mounts |
| Seal | Inner O-ring |
| Silent Action | Yes |
| Temperature Range | -40 to 120 Degrees F |
| Water Tight | Yes |
| Weight | Less than an ounce |
Pros
- Fast, flip-open design allows quick access with a simple thumb press.
- Custom-fit friction mounts help anchor the cover securely to the scope.
- Inner O-ring seal helps keep out dust and moisture.
- Silent spring hinge supports quiet operation in the field.
- Ambidextrous button design offers one-touch use from either side.
- Performs from -40 to 120 degrees F for broad temperature range.
Considerations & Trade-offs
- Size 18 is a custom fit for most scopes, so fit should be verified against the specific eyepiece before purchase.
- The flip-open design is built for quick access, but it adds a hinged cover that some users may prefer to keep closed until needed.
- Protection is focused on sealing out dust and moisture; it does not change the scope itself or replace other weather precautions.
- Performance is listed for -40 to 120 degrees F, so use outside that range is not covered by the provided product data.
Suggested Comparisons
- Scope lens covers
- Objective lens covers
- Scope accessories
- Optics protection accessories
Suggested Accessories
- Scope lens cleaning kit
- Lens brush
- Microfiber cleaning cloth
- Protective scope cover
Frequently Asked Questions
What scope size does this eyepiece cover fit?
It is listed as eyepiece size 18 and is described as a custom fit for most scopes. No additional scope diameter or model compatibility details are provided.
Does this cover help keep dust and moisture out?
Yes. The product description says it uses an inner O-ring and an air-tight semi-O-ring seal to help keep out dust and moisture.
Is the flip-open action quiet enough for hunting?
The description says the spring hinges are silent and the design is intended for quiet operation. No further noise-performance details are provided.
How does it attach to the scope?
It uses water-tight, custom-fit friction mounts to anchor it to the scope. No other mounting method is listed.
Can it be used in cold or hot weather?
The listed operating range is from -40 to 120 degrees F. Beyond that range, no additional environmental claims are provided.