Viridian 9810060 RFX45 Closed Emitter Green Dot Sight Black | 24 x 15.5mm 5 MOA Green Dot

The Viridian RFX45 green dot sight brings a closed-emitter reflex design to shooters who demand fast target acquisition and reliable performance in the field. Unlike open-style red dot sights, the RFX45's tunnel configuration lets your eye naturally center on the reticle faster—a real advantage whether you're on the range, hunting, or training for defensive use. Viridian's choice of a bright green LED over the standard red delivers superior visibility across varied lighting conditions, a hallmark of the brand's optics lineup. Built from 6061 aircraft-grade aluminum and hardcoat anodized for durability, this compact sight weighs just 1.73 ounces and fits the ACRO footprint, making it equally at home on a pistol slide or a lightweight carbine.

The RFX45 is engineered for real-world shooting. Its INSTANT-ON activation fires the sight the moment you move it, eliminating the fumbling of manual power switches; when you set it down for two minutes, it automatically sleeps to conserve battery life. A single CR2032 battery lasts over 50,000 hours—that's years of occasional use or extended range sessions. The 5 MOA dot is clean and fast to pick up, and fully multi-coated glass delivers optical clarity without distortion. You get 10 brightness settings, plus 8 additional levels calibrated for night vision devices, alongside 90 MOA of total adjustment to dial in your zero.

This is a purpose-built sight for shooters who value simplicity and visibility. No frills, no gimmicks—just a well-made green dot that works when you need it.

Key Features

• Bright green LED reticle—superior visibility compared to red dots in variable light
• Closed-emitter design for faster, more intuitive sight picture and target acquisition
• INSTANT-ON activation with automatic 2-minute sleep mode for battery efficiency
• Lightweight 6061 aluminum housing with hard coat anodization—durable and corrosion-resistant
• 10 standard brightness levels plus 8 night vision compatible settings
• 50,000+ hour battery life on a single CR2032 cell
• ACRO footprint for broad compatibility across modern pistols and carbines
• IPX6 environmental sealing and wide operating temperature range (-4°F to 130°F)

Specifications

Frequently Asked Questions

What mount does the RFX45 use, and what's included?

The RFX45 uses the ACRO footprint and is compatible with ACRO-pattern optics mounts found on many modern pistols and carbines. The product ships with adapters and mounts to ensure compatibility with your platform; verify your specific firearm's mounting standard before purchase.

How does a closed-emitter green dot compare to an open red dot sight?

A closed-emitter design confines the LED within a tunnel, which naturally guides your eye to the center of the reticle faster than an open-frame sight. This can result in quicker target acquisition, especially under stress. The green LED itself offers better brightness and visibility in daylight and mixed lighting compared to traditional red dots.

How long does the battery last, and is it easy to replace?

The RFX45 runs on a single CR2032 battery and delivers over 50,000 hours of runtime. That translates to years of regular use. The INSTANT-ON activation with automatic 2-minute sleep mode also helps stretch battery life by powering down when the sight isn't being moved.

Will this sight work with night vision devices?

Yes. The RFX45 includes 8 brightness settings optimized for use with night vision equipment, in addition to 10 standard daylight levels, giving you flexibility across different shooting scenarios and conditions.