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Butler Creek Flip-Open Scope Cover Objective Size 21 Polymer Black, 30210
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$11.99
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SKU: 30210-051525302100
Overview
Built for hunters who want quick access without leaving an optic exposed, this objective lens cover is designed to stay in place with a custom friction fit. The flip-open design and silent spring hinge support fast, quiet use when a shot opportunity appears, while the weatherproof O-ring seal helps keep dirt and moisture out. It is sized for a 1.735" outside diameter objective and uses an ambidextrous polymer construction in black. A practical choice for protecting a scope during transport and in the field, especially when conditions are unpredictable.
Why Hunters Choose the Butler Creek
Custom Fit
Objective cover for a secure,
Water-tight Seal
Airtight O-ring help keep out
Fast Flip
Tabs allow quick access to
Silent Spring
Hinge supports quiet operation in
Ambidextrous Design
Suits left- or right-handed use
Key Features
- Custom-fit objective lens cover for size 21 optics
- Fits 1.735-inch outside diameter objective lenses
- Water-tight friction mount helps anchor the cover to the optic
- Weatherproof airtight O-ring seal helps keep out dirt and moisture
- Fast flip push tabs support quick access
- Silent spring hinge and ambidextrous design
Best Used For
- Hunters wanting objective-lens protection from dirt and moisture during variable weather conditions
- Shooters needing fast, silent access to optics without spooking game
- Users seeking a custom-fit cover for a 1.735-inch outside diameter objective lens
- Ambidextrous users who prefer a flip-open design for quick, one-handed operation
- Hunters and shooters looking for a simple polymer scope cover for everyday optic protection
Specifications
| Color | Black |
|---|---|
| Cover Type | Flip-Open Scope Cover |
| Design | Ambidextrous |
| Fits Outside Diameter | 1.735 in (44.1 mm) |
| Flip Tabs | Fast Flip Push Tabs |
| Hinge Type | Silent Spring Hinge |
| Material | Polymer |
| Model Number | 30210 |
| O Ring | Airtight O-ring |
| Objective Lens Cover Size | 21 |
| Seal Type | Water Tight Seal |
| Temperature Tested | -40 deg. F |
| Weatherproof | Yes |
Pros
- Custom fit objective cover for a secure, friction-mount fit on compatible optics.
- Water-tight seal and airtight O-ring help keep out dirt and moisture.
- Fast flip tabs allow quick access to the optic when needed.
- Silent spring hinge supports quiet operation in the field.
- Ambidextrous design suits left- or right-handed use.
Considerations & Trade-offs
- Fits only objective lenses with a 1.735" (44.1 mm) outside diameter, so sizing needs to be checked carefully before ordering.
- The friction-mount, custom-fit design is secure, but it depends on a proper optic fit rather than a universal attachment.
- The flip-open cover is built for quick access, but it still adds a physical cover that must be opened before using the scope.
- Weatherproof and airtight sealing are useful for keeping out dirt and moisture, but they do not eliminate the need to inspect and maintain the optic itself.
Suggested Comparisons
- Objective lens covers
- Flip-open scope covers
- Rifle scope accessories
- Optics protection accessories
Suggested Accessories
- Scope cleaning kit
- Lens cloth
- Optics case
- Protective lens caps
Frequently Asked Questions
What objective lens size does this scope cover fit?
This is the Objective Lens Cover Size 21 and is listed as fitting a 1.735" (44.1mm) outside diameter objective.
Does the cover help keep out moisture and dirt?
Yes. The product description says it has a weatherproof, airtight O-ring seal and a watertight seal designed to keep out dirt and moisture.
Is it designed to open quietly in the field?
The description says it uses a silent spring hinge, which is intended to allow quiet opening.
Is this scope cover ambidextrous?
Yes. The listed specifications include an ambidextrous design.
What material and color is the cover?
The specifications list it as polymer and black.