Anti-Reflection Devices
Your optic is a force multiplier — but it can also be a liability. The wrong kind of light at the wrong time can reflect off your glass and give away your position.
Anti-Reflection Devices (ARDs) are purpose-built to stop that. Often times refered to as killflashes or hexcaps, these lightweight, honeycomb-style inserts mount to the front of your red dot or scope and cut down visible and infrared glare without blocking your sight picture. Whether you’re under direct sunlight, using white light, or operating under NV, these covers help keep your position hidden and your advantage intact.
This isn’t about looking cool. It’s about staying unobserved until you decide otherwise. Field-proven. Lightweight. Zero-glint. Ready for your next move.
Control what they see with zero compromise.
What does an anti-reflection device (ARD) do and why is it important?
An anti-reflection device (ARD) prevents light — including sunlight, white light, or IR illumination — from reflecting off your optic’s front glass and giving away your position. In bright environments or when under observation (especially with night vision), your optic can act like a mirror. ARDs, often called killflashes or hexcaps, use a honeycomb-style mesh to block those reflections while still allowing you to aim clearly. For low-visibility operations, night vision use, or just avoiding being spotted, ARDs are an easy but critical upgrade that protects both your position and your glass.
Frequently Asked Questions about Anti-Reflection Devices
- Will an anti-reflection device affect my sight picture?
- Not significantly. Most ARDs are designed to allow full use of your optic while only slightly reducing brightness. They don’t interfere with dot clarity or magnification, and most users forget it’s even there after a few minutes of use.
- Can ARDs protect my lens from damage?
- Yes — while their main purpose is to block reflections, some ARDs also serve as sacrificial lenses. They help protect your front glass from scratches, BB hits (for training), and debris impacts in the field.
- Are ARDs compatible with magnified optics and red dots?
- Yes. We offer models built specifically for both red dots and magnified optics. Just be sure to match the ARD to your optic’s outer diameter or model for proper fitment.
- Is there a difference between a killflash, hexcap, and ARD?
- Yes — those are all terms for anti-reflection devices. However, there are wide differences in design and effectiveness between these different product lines. We only carry ARDs we trust and can stand behind.
- Can I run an ARD with a flip-up lens cover?
- It depends on the specific model and how the flip-up cover attaches onto your optic. Just make sure the fit doesn’t create pressure points or distort the mesh, and always test your view after installation.
- Do ARDs help with IR signature reduction?
- They can. While not their primary design purpose, ARDs can reduce IR glare when viewed under night vision by blocking direct IR light from bouncing off the lens. This helps maintain a lower visual signature under NODs.
- Are ARDs universal or optic-specific?
- Some ARDs are optic-specific, while others are universal-fit based on objective lens diameter. Always check compatibility before buying, especially for optics with unique bezels or housings.
- How do I install or remove an anti-reflection device?
- Most ARDs press-fit or screw into the front of your optic. Removal is easy — just unscrew or gently pop it out. Be sure to follow any manufacturer instructions to avoid damaging threads or coatings.