Ever been out in the field, ready for that perfect shot, only to find your scope lens covered in dust or a sudden rain shower? That moment of frustration can cost you dearly. Choosing the right flip-up scope covers feels like a minefield. Do you need durable rubber, hard plastic, or maybe something lightweight? The sheer variety of sizes, mounting styles, and materials can make your head spin, leaving you unsure if you are protecting your expensive optics properly.
Stop guessing about lens protection! This guide cuts through the confusion. We will break down exactly what makes a great flip-up cover. You will learn the key features to look for, how to match the cover to your specific rifle scope, and the common mistakes hunters and shooters make when buying them. Get ready to secure crystal-clear vision every time you raise your rifle.
Top Flip Up Scope Covers Recommendations
- Monstrum Pro Series Scope Lens Covers help you keep your glass clean and damage free for when you need it most.
- Rubberized sleeves are crafted from an improved rubber formulation - designed to fit snug around your scope tube with more resiliency than ever before.
- Before purchase, carefully measure your scope for the correct fit. Measure the outside diameter of both the eyepiece and objective bell end of your scope. Select the lens cover whose range corresponds to the measured diameter. If diameter size is borderline, we recommend opting for the larger size.
- Spring loaded flip-up lens caps deploy with the flick of a thumb and secure tightly when not in use.
- Each package includes one flip-up lens cover. If you want covers for both the eyepiece and objective of your scope, you will have to purchase one for each end.
- Truly ambidextrous, silent spring hinges won't spook game
- Instant action lids pop open at the touch of a thumb
- Performs from 40 to 120 Degrees F, weighs less than an ounce
- Please watch related video for instruction on sizing
- Virtually indestructible, the Defender is the most versatile and durable flip cap on the market, this is the last flip cap you'll ever need.
- A stainless steel spring flips the cap into multiple stop positions at 180 degrees and 45 degrees.
- Outside diameter: 0-55 / 55-59 mm / 2.16 - 2.32 inches
- Objective-50 Fits: RZR-31802, RZR-31803, RZR-52005, RZR-52006, PST-5258, PST-5255, PST-5251, VHS-4310, VHS-4325, VHS-4307-LR, VHS-4315-LR, VHS-4307, VPR-M-06MD, VPR-M-06BDC, DBK-M-03P, DBK-03-BDC, CF2-31011, CF2-31023, CF2-31027, CF2-31039, CF2-31045
- Made in the USA.
- IMPORTANT: Sizing is based on the OUTSIDE diameter of your scope housing. It is NOT based the objective lens diameter of your scope - a 3-9x40mm scope will not fit with a 40mm sized lens cover.
- Monstrum Ultra Series Scope Lens Covers help you keep your glass clean and damage free for when you need it most.
- Rubberized sleeves are crafted from an improved rubber formulation - designed to fit snug around your scope tube with more resiliency than ever before.
- Before purchase, please view measurement guide and video to ensure selection of the correct fit. Measure the outside diameter of both the eyepiece and objective bell end of your scope. Select the lens cover whose range corresponds to the measured diameter. If diameter size is borderline, we recommend opting for the larger size.
- Spring loaded flip-up lens caps deploy with the flick of a thumb and secure tightly when not in use. Ultra Series Lens Coves come with a clear see-through lens caps allow for visibility through the optic even when closed.
- Monstrum Pro Series Scope Lens Covers help you keep your glass clean and damage free for when you need it most.
- Rubberized sleeves are crafted from an improved rubber formulation - designed to fit snug around your scope tube with more resiliency than ever before.
- Before purchase, carefully measure your scope for the correct fit. Measure the outside diameter of both the eyepiece and objective bell end of your scope. Select the lens cover whose range corresponds to the measured diameter. If diameter size is borderline, we recommend opting for the larger size.
- Spring loaded flip-up lens caps deploy with the flick of a thumb and secure tightly when not in use.
- Each package includes one flip-up lens cover. If you want covers for both the eyepiece and objective of your scope, you will have to purchase one for each end.
- Easy Sizing Guidance: Please scroll down to graphic below for detailed sizing instructions
- Silent, Ambidextrous Design: True ambidextrous construction with silent spring hinges that won’t spook game
- Flip-Open Cap: Instant-action lids pop open with a simple press of your thumb
- Lightweight: Weighs under one ounce and performs reliably from -40°F to 120°F
- Airtight Lens Protection: Semi O-ring seal keeps dust and moisture off your lens
- The lens cover folds flat horizontally to the scope body
- Spring-loaded lens covers quickly deploys open with a simple press
- Provides a good dust seal for the optics.
- Can be mounted onto scopes, round reflex optics, binoculars, spotting scopes, or any optic with a round profile.
- Virtually indestructible, the Defender flip caps are the most versatile and durable on the market, these are the last flip caps you'll ever need. Made in the USA.
- A stainless steel spring flips the Eyepiece into multiple stop positions: vertical, 45 degrees and 90 degrees. The vertical position is for inserting your dope disk in to have easy access to while shooting. Dope disk NOT included.
- A stainless steel spring flips the O-44 cap into multiple stop positions at 45 and 90 degrees.
- The E-10 fits all Vortex Riflescopes EXCEPT the 1-inch tube Viper model VPR-M-01BDC, VPR-M-04BDC and VPR-M-03BDC. Objective-44 fits all Vortex riflescopes with a 44mm objective lens.
- Backed by our unlimited, unconditional, lifetime, VIP Warranty. A fully transferable promise to repair or replace your item if it becomes damaged/defective. Does not cover loss, theft, deliberate damage or cosmetic damage that doesn't hinder performance.
The Ultimate Buying Guide for Flip-Up Scope Covers
Protecting your rifle scope is crucial for clear shots and long-lasting performance. Flip-up scope covers are essential gear. They keep dust, rain, and scratches away from your valuable lenses. This guide helps you choose the best covers for your needs.
Key Features to Look For
Good flip-up covers offer more than just basic protection. Look closely at these important features when you shop.
1. Quick Deployment and Secure Closure
- Easy Flip Mechanism: You need to open the cover fast, often with one hand. A smooth, strong spring action is best.
- Positive Latch: The cover must snap shut firmly. You do not want it accidentally opening when you move quickly.
2. Fit and Sizing
Covers must match your scope’s objective (front) and ocular (rear) lens diameters exactly. Measure your scope’s outer diameter carefully before ordering. A loose cover falls off. A tight cover is hard to use.
3. Durability and Construction
Your covers will face rough treatment in the field. They need to be tough.
Important Materials
The material dictates how long the cover lasts and how well it performs in bad weather.
High-Quality Plastics
- Polycarbonate or Heavy-Duty Nylon: These plastics are light but very strong. They resist cracking when dropped. Avoid cheap, brittle plastics.
Springs and Hardware
The hinges and springs need to resist rust. Stainless steel or high-grade aluminum parts last much longer than standard steel, especially if you hunt in wet areas.
Factors That Improve or Reduce Quality
Not all flip-up covers perform the same way. Small details make a big difference in the field.
Quality Boosters
- Water Resistance: Look for covers designed to seal out moisture. Some even feature rubber gaskets around the rim.
- Anti-Reflective Finish: A matte finish prevents the cover from shining in the sun, which could spook game.
Quality Reducers
Cheap covers often fail quickly. Poorly molded plastic edges can snag on gear. Weak springs fail, leaving your lens exposed. If the mounting system uses thin plastic clamps, they often break under pressure.
User Experience and Use Cases
Think about where and how you use your rifle. This affects your choice.
Hunting vs. Tactical Use
- Hunting: Hunters often prefer silent operation. Ensure the flip mechanism does not make a loud “snap” when opened or closed.
- Tactical/Range Use: Speed is key here. You might choose a model that allows for very fast, aggressive opening.
Mounting Style
Some covers attach directly to the scope body. Others use elastic bands around the scope tube. Direct attachment is generally more secure and reliable.
10 Frequently Asked Questions (FAQ) About Flip-Up Scope Covers
Q: What is the main purpose of a flip-up scope cover?
A: The main purpose is to protect the objective and ocular lenses from scratches, dust, rain, and debris when the rifle is not actively being aimed.
Q: How do I know which size cover to buy?
A: You must measure the outer diameter of the lens housing (the bell) on the front and the eyepiece on the back of your scope. Covers are sized by these measurements, usually in millimeters (mm).
Q: Are flip-up covers better than lens caps?
A: Yes, for active use. Flip-up covers stay attached to the scope, so you cannot lose them. You can also open them very quickly when a target appears.
Q: Can I leave the covers on while shooting?
A: No. You must flip them open before you look through the scope. Leaving them closed will completely block your view.
Q: Do these covers affect my scope’s zero?
A: Properly installed flip-up covers do not affect your scope’s zero. They only cover the lens glass.
Q: What is a “waterproof” cover?
A: A waterproof cover often has rubber gaskets or O-rings that seal the space between the cover and the scope body, preventing water intrusion.
Q: Are plastic covers strong enough for rough use?
A: High-quality, thick polycarbonate plastic is very durable and shock-resistant. Cheap plastic breaks easily, so material quality matters a lot.
Q: How loud is the closing mechanism?
A: This varies by brand. High-end models are designed to close quietly. Budget models might make a loud “click,” which can be a problem for hunters.
Q: Can I use these covers if my scope has flip-up scope rings already?
A: Sometimes. You must check the mounting clearance. If the cover mounts too close to the scope rings, they might interfere with each other.
Q: How do I clean the lenses underneath the covers?
A: Always flip the cover open first. Use a dedicated lens cloth or swab to clean the glass. Do not use abrasive materials.