Shooting SuppliesButler CreekSold by Fin Feather Fur Outfitters

Butler Creek

Butler Creek Flip-Open Scope Cover Eyepiece Size 13 Polymer Black, 20130

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Custom-fit Eyepiece

A 1.57" outside diameter

Flip-open Design

Quick access to the scope

Water-tight Seal

Airtight O-ring help keep out

No-slip Button

Silent spring hinge support fast,

Ambidextrous Design

Suits left- or right-handed use

$11.99
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SKU: MO20130-051525201304

Overview

Built for hunters who want to keep an optic protected and ready, this eyepiece cover is designed for a custom fit on compatible scopes. Its water-tight seal and weatherproof O-ring help block out dirt and moisture, while the friction mount keeps it anchored in place. A no-slip button and silent spring hinge allow quick opening when it is time to take a shot, without adding unnecessary noise in the field. The ambidextrous design and polymer construction make it a practical accessory for everyday use in changing conditions.

Why Hunters Choose the Butler Creek

Custom Fit

Eyepiece cover sized for a

Water-tight Seal

Airtight O-ring help keep out

No-slip Button

Silent spring hinge support quick,

Ambidextrous Design

Suits left- or right-handed use

Polymer Construction

In black offers a simple,

Key Features

  • Custom-fit eyepiece cover for optics with a 1.57" outside diameter.
  • Flip-open design provides quick access to the scope when needed.
  • Water-tight seal and airtight O-ring help keep out dirt and moisture.
  • No-slip button and silent spring hinge support fast, quiet operation.
  • Ambidextrous design suits left- or right-handed use.
  • Polymer construction in black finish.

Best Used For

  • Hunters needing a custom-fit eyepiece cover for protecting optics in changing weather
  • Shooters who want quick, silent access to the scope without drawing attention
  • Field users looking for a weatherproof seal against dirt and moisture on their optic
  • Ambidextrous setups requiring an eyepiece cover with easy, no-slip operation

Specifications

ButtonErgonomic Non-Slip Button
ColorBlack
Cover PositionEyepiece
DesignAmbidextrous
Fits Outside Diameter1.57 in (39.9 mm)
Hinge TypeSilent Spring Hinge
MaterialPolymer
Model20130
O RingAirtight
Product TypeFlip-Open Scope Cover
Seal TypeWater Tight Seal
Size13
Temperature Rating-40 deg. F
WeatherproofYes

Pros

  • Custom fit eyepiece cover sized for a 1.57-inch outside diameter optic.
  • Water-tight seal and airtight O-ring help keep out dirt and moisture.
  • No-slip button and silent spring hinge support quick, quiet opening.
  • Ambidextrous design suits left- or right-handed use.
  • Polymer construction in black offers a simple, low-profile finish.

Considerations & Trade-offs

  • Size 13 is a specific fit, so it’s important to confirm your eyepiece outside diameter before ordering; it fits 1.57" (39.9mm) outside diameter eyepieces.
  • The friction-mount, water-tight seal is designed for a secure hold, which means fit depends on the optic being within the stated size range.
  • The flip-open design adds quick access, but it is still a cover that must be opened before use rather than leaving the eyepiece fully exposed.
  • Polymer construction keeps it lightweight and practical, but it is a functional accessory rather than a hard protective case for the optic.

Suggested Comparisons

  • Scope covers
  • Objective lens covers
  • Optics storage and protection accessories
  • Rifle scope accessories

Suggested Accessories

  • Scope cover
  • Optics protection case
  • Lens cleaning kit
  • Scope mounting accessories

Frequently Asked Questions

What scope eyepiece size does this cover fit?

This is the Eyepiece/Ocular Cover Size 13, and the provided specifications say it fits a 1.57" (39.9 mm) outside diameter eyepiece.

Does the cover help keep out dirt and moisture?

Yes. The product description says it has a weatherproof, airtight O-ring seal and a watertight seal designed to help keep out dirt and moisture.

Is the flip-open design quiet to use in the field?

The description says it uses a silent spring hinge, which is intended to allow quick opening with less noise.

Is this scope cover ambidextrous?

Yes. The listed specifications identify it as an ambidextrous design.

What material and color are listed for this cover?

The provided specifications list the cover as polymer and black.