Product Description
Please Note: IF you Can't find a large enough Eye (diopter) side Lens cap you can use one of these made ofr the objective lens. You just wont have the open button.
Trusted American Craftsmanship
Made in the USA or imported to the same quality standards, this objective lens flip-open cover embodies reliability. Its airtight semi O-ring seal ensures your scope lens remains free from moisture and dust during use or storage.
Flip-Open Convenience and Lightweight Performance
The silent, ambidextrous lid pops open instantly for quick aiming without spooking game. Weighing under one ounce and designed for temperatures between -40°F and 120°F, it ensures your optics remain clear and always ready for action.
Innovative Design Features
The quick-flip design that defines Butler Creek Scope Covers represents a revolutionary departure from traditional lens cap designs. Conventional threaded caps or push-on covers require two hands to remove and must be stored somewhere during use, creating opportunities for loss and fumbling in critical moments. Butler Creek’s flip-open mechanism eliminates these problems through an ingenious spring-loaded hinge system that allows one-handed operation in a fraction of a second. This design proves particularly valuable in hunting scenarios where game may appear suddenly, demanding immediate readiness, or in tactical situations where rapid target acquisition can prove crucial.
Ergonomic considerations pervade every aspect of the flip-open design. The flip lever is sized and positioned for intuitive operation, allowing users to open covers without looking or conscious thought after minimal familiarization. The hinge mechanism is engineered to require just enough resistance to prevent accidental opening during transport while opening smoothly and silently when deliberately actuated. The covers lock securely in the open position, ensuring they don’t drift back into your sight picture during use. When closed, a positive detent provides tactile and audible confirmation that the cover is properly seated and providing full protection.
Recognizing that objective and ocular lenses face different challenges and usage patterns, Butler Creek designs these covers with distinct optimizations. Objective covers, protecting the front lens, typically feature more robust construction to shield against forward impacts and environmental debris encountered while moving through vegetation or terrain. Ocular covers, protecting the eyepiece, are optimized for frequent opening and closing, as shooters regularly transition between carrying and shooting positions. The ocular cover design also accounts for eye relief considerations, ensuring the cover doesn’t interfere with proper scope positioning or cheek weld when opened.
The spring mechanism that enables the quick-flip functionality deserves particular attention. These springs are manufactured from corrosion-resistant materials that maintain their tension through thousands of operation cycles. The spring rate is carefully calibrated to provide sufficient force to hold covers securely open or closed without creating excessive resistance during operation. This mechanism is protected within the hinge assembly, shielded from debris and moisture that could compromise its function. The longevity of these springs testifies to Butler Creek’s commitment to quality—many users report covers functioning flawlessly after decades of service.
The Butler Creek Sizing System
One of the most common challenges in selecting scope accessories is determining proper fit, and Butler Creek has addressed this through their comprehensive sizing system. Each Butler Creek cover is assigned a numerical size designation corresponding to the objective lens diameter it is designed to fit. This system spans sizes from the smallest compact scope objectives to the largest long-range tactical optics, ensuring coverage for virtually every scope on the market. The sizing system accounts not just for lens diameter but also for the external housing dimensions of various scope manufacturers, whose designs may vary even when objective lens sizes are nominally identical.
Measuring your scope to determine the correct cover size requires careful attention to detail. The critical measurement is the outside diameter of the scope body at the objective bell (front) and ocular bell (rear), not the lens diameter itself. This measurement should be taken with precision calipers if available, though a flexible measuring tape can provide adequate results if used carefully. It’s important to measure the actual body diameter where the cover will sit, as scope tubes often taper or step in diameter. When measurements fall between standard sizes, Butler Creek’s flexible material often accommodates slight variations, though selecting the closest standard size ensures optimal fit and function.
To facilitate size selection, Butler Creek publishes extensive compatibility charts listing common scope models and their corresponding cover sizes. These charts remove guesswork by providing direct cross-references between popular scope brands and models and the appropriate Butler Creek size designations. Major manufacturers like Leupold, Vortex, Nikon, Bushnell, and countless others are included in these references, making selection straightforward for users who know their scope model. For custom or less common optics, the measurement-based approach provides a reliable fallback method.
The importance of selecting the correct size cannot be overstated. Covers that are too small will not install properly or may stretch excessively, leading to premature failure or inadequate protection. Oversized covers fit loosely, failing to stay securely in place and potentially falling off during use—defeating their entire purpose. Properly sized covers install with a firm snap, stay reliably in place during the most vigorous activity, yet can still be removed when necessary without excessive force or risk of damaging your scope’s finish or adjustment mechanisms.
Product Line Categories
Flip-Open Series: The Classic Standard
The standard Flip-Open series represents the foundation of Butler Creek’s scope cover lineup and remains their most popular product line. These covers embody the core quick-flip technology that made Butler Creek famous, delivering reliable lens protection with instant access through their proprietary spring-loaded design. The standard series is available across the complete size range, ensuring compatibility with scopes from compact rimfire optics to large-objective long-range systems. These covers utilize the proven polymer formulation that balances durability, weather resistance, and flexibility while maintaining an affordable price point that makes them accessible to all shooters.
The application versatility of the Flip-Open series makes them ideal for hunting scenarios of all types. Deer hunters moving through dense hardwood forests appreciate the protection these covers provide against branches and thorns while the quick-flip design ensures readiness when a buck steps into view. Waterfowl hunters facing wet conditions benefit from the moisture protection and rapid deployment capability. Western hunters glassing vast territories value the dust and scratch protection during long days in arid environments. The covers’ unobtrusive profile suits these applications perfectly, adding minimal weight or bulk while providing maximum protective value.
For competitive shooting sports, the Flip-Open series offers distinct advantages. Competition shooters can keep their optics protected during transport and between stages, then deploy instantly when the timer starts. The covers protect valuable match-grade optics from range dust and debris while adding no weight that might affect rifle balance. The reliability of the flip mechanism ensures consistent performance across thousands of opening and closing cycles—critical for competitors who depend on their equipment functioning flawlessly under pressure.
The single-handed operation capability of these covers proves invaluable across applications. Whether you’re carrying gear in one hand while stabilizing yourself with the other during a mountain hunt, managing a firearm while moving through tactical scenarios, or simply need to ready your rifle quickly, the ability to flip open both objective and ocular covers using only the hand already on your rifle provides significant practical advantages. This seemingly simple feature represents the type of thoughtful design that separates truly useful equipment from mere accessories.

