Tenebraex Corp Sunguard Ard For Objective Cover 39, 40 & 43
The Tenebraex Corp Sunguard ARD for objective covers in sizes 39, 40, and 43 is a specialized anti-reflective device designed to improve optical clarity and reduce glint on your rifle scope. Built using honeycomb cell technology refined by military and special operations forces, this objective lens insert cuts through bright-light glare and reflections that degrade sight picture and potentially alert game. Whether you're shooting in high-altitude terrain, open water, or desert conditions where sunlight bounces hard off glass, a quality ARD can make the difference between a clean shot and a missed opportunity.
These ARDs are engineered to sit inside compatible Butler Creek flip-open objective lens covers—a non-permanent, tool-free solution that lets you deploy glare reduction only when conditions demand it. The honeycomb structure is nearly invisible when looking through the scope, so it won't degrade image quality or transmission. More importantly, the internal geometry scatters reflected light away from your position rather than broadcasting your scope location to every set of eyes in the country.
Available in three common objective sizes (39, 40, and 43mm), the Sunguard ARD pairs with the Butler Creek covers we carry for most mainstream hunting and tactical scopes. This is not a standalone product—pairing it with the correct Butler Creek cover for your optic ensures proper fit and performance. If you run quality glass and take longer-range hunting seriously, an anti-reflective device is a smart insurance policy against both optical frustration and preventable game loss.
Key Features
- Honeycomb cell design reduces glare and improves sight picture in bright conditions
- Minimizes scope reflection that can spook game or reveal position
- Mounts inside compatible Butler Creek flip-open objective covers
- Nearly invisible through the scope—no image degradation
- Removable and repositionable without tools
- Military-grade optical technology
Specifications
| Brand | Tenebraex Corp |
| Product Type | Anti-Reflective Device (ARD) for Objective Lens |
| Sizes Included | 39mm, 40mm, 43mm |
| Installation Method | Fits inside Butler Creek flip-open objective lens covers |
| Core Technology | Honeycomb cell design |
Frequently Asked Questions
Do I need a Butler Creek cover to use this ARD?
Yes. The Sunguard ARD is designed to sit inside compatible Butler Creek flip-open objective covers and is not a standalone product. You'll need the matching Butler Creek cover for your scope's objective size to use this device.
What objective sizes does this ARD fit?
This product comes in three sizes: 39mm, 40mm, and 43mm. Confirm your scope's objective diameter before ordering to ensure proper fit inside your Butler Creek cover.
Will the honeycomb cells affect my sight picture?
No. The honeycomb structure is designed to be nearly invisible when looking through the scope, so it will not degrade image quality or light transmission.
Is this product useful for hunting?
Yes. The ARD reduces glare in bright conditions and minimizes scope reflections that can spook game or reveal your position. It's especially useful in open, high-angle, or water-based hunting environments where bright light is a factor.

