Shooting SuppliesButler CreekSold by Fin Feather Fur Outfitters

Butler Creek

Butler Creek Flip-Open Scope Cover Objective Size 31 Polymer Black, 30310

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

Custom-fit Objective

Lens cover for size 31

Fits 1.998-inch

Outside diameter objective lenses

Water-tight Friction

Mount helps anchor the cover

Weatherproof Airtight

O-ring seal helps keep out

Fast Flip

Push tabs allow quick opening

$11.99
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SKU: 30310-051525303107

Overview

Designed to protect an objective lens from dirt and moisture, this flip-open scope cover is a practical choice for hunters and shooters who want quick access without leaving optics exposed. Its custom fit and friction-mount design help it stay anchored to the optic, while the weatherproof O-ring seal adds a layer of protection in changing conditions. Fast flip tabs and a silent spring hinge support fast, quiet use when a shot opportunity comes up. The polymer black construction and ambidextrous design keep the profile simple and functional for field use.

Why Hunters Choose the Butler Creek

Custom Fit

For a secure friction mount

Water-tight, Airtight

O-ring seal helps keep out

Fast Flip

Tabs support quick access when

Silent Spring

Hinge is designed to reduce

Ambidextrous Design

Suits both right- and left-handed

Key Features

  • Custom-fit objective lens cover for size 31 optics
  • Fits 1.998-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 allow quick opening
  • Silent spring hinge and ambidextrous design

Best Used For

  • Hunters needing objective-lens protection from dirt and moisture in harsh weather
  • Shooters wanting fast, silent access to optics before a precision shot
  • Users with a 1.998-inch outside diameter objective lens needing a custom fit
  • Hunters who prefer a friction-mount cover with an airtight O-ring seal
  • Ambidextrous users looking for a simple flip-open scope cover design

Specifications

ColorBlack
Cover TypeFlip-Open Scope Cover
DesignAmbidextrous
Fits Outside Diameter1.998 in (50.7 mm)
Flip TabsFast Flip Push Tabs
Hinge TypeSilent Spring Hinge
MaterialPolymer
Model Number30310
O RingAirtight O-ring
Objective Lens Cover Size31
Seal TypeWater Tight Seal
Temperature Rating-40 deg. F
WeatherproofYes

Pros

  • Custom fit for a secure friction mount on compatible objective lenses.
  • Water-tight, airtight O-ring seal helps keep out dirt and moisture.
  • Fast flip tabs support quick access when the shot presents itself.
  • Silent spring hinge is designed to reduce noise during use.
  • Ambidextrous design suits both right- and left-handed shooters.
  • Polymer black construction offers a simple, low-profile finish.

Considerations & Trade-offs

  • Size-specific fit means it is limited to optics with a 1.998" (50.7mm) outside diameter objective, so compatibility should be checked before purchase.
  • The friction-mount, water-tight seal is designed for a secure hold, which may require a precise fit to work as intended.
  • The polymer construction keeps the cover lightweight and practical, but it is still a dedicated accessory rather than a universal solution for every optic.
  • Flip-open access is quick and quiet, but it adds a moving hinge and tabs that some users may prefer to keep protected when not in use.

Suggested Comparisons

  • Objective lens covers
  • Flip-open scope covers
  • Weatherproof optic protection accessories
  • Scope accessories

Suggested Accessories

  • Scope cleaning cloth
  • Lens cleaning kit
  • Scope caps
  • Optics case

Frequently Asked Questions

What objective lens size does this Butler Creek cover fit?

This is Objective Lens Cover Size 31 and is listed to fit a 1.998" (50.7 mm) outside diameter objective.

How does the cover attach to the scope?

It uses a custom-fit friction mount with a water-tight seal to anchor to the optic.

Does it help keep out dirt and moisture?

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

Is the flip-open action quiet enough for hunting?

The product description says it has a silent spring hinge, which is intended to allow quick access without making unnecessary noise.

What other features are listed for this scope cover?

Listed features include fast flip push tabs, an ambidextrous design, polymer construction, black color, and testing to -40 deg. F.