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The human eye sees green light about six times more easily than it does red. That’s why you’re seeing so many sight makers now turning out green dots. As someone who’s used both, I definitely prefer green to red, especially in daylight.

Green dots are slightly more expensive to make than red dots, but that gap is narrowing. Case in point – Viridian’s new RFX11 reflex sight that shipping now. With an RMSc footprint and an MSRP of $189, it’s going to be a popular choice as a handgun sight.

Here’s their press release . . .

Viridian Weapon Technologies continues to expand on the fact that human eyes see green better with the newest product in a long line of purpose-built, high quality, and highly visible aiming devices from Viridian, the RFX11. The entire RFX line is designed from the ground up to improve performance and provide rapid target acquisition.

“The RFX line has ushered in a new era of visibility and continues to prove that human eyes see green better,” said Viridian President and CEO, Brian Hedeen. “As the latest addition to the family, the RFX11 weighs in as one of the lightest, top performing sights we’ve ever built. This sight is now available for Viridian fans and shooting enthusiasts.”

Packed with features including a highly visible and efficient Viridian green 3 MOA dot, INSTANT-ON and auto shut off, ambient light sensor and over 30k hours of run time, the RFX11 is a must have for any firearm. The new sight boasts unlimited eye relief and automatic brightness control.

At just four ounces, the RFX11 is one of the lightest reflex sights on the market and is now available for shipping. Its tiny size puts it at home on any optics-cut concealed carry pistol or as a close-range offset sight on your rifle. The RFX11 is backed by Viridian’s Limited Lifetime warranty.

To learn more about the ultra-light RFX11, all RFX Reflex Sights and how Viridian continues to produce the most innovative products in the firearm industry, visit


Footprint: Shield RMSc
Dimensions:1.6″ x 0.95″ x 0.89″
Lens Dimension: 16mm x 22mm
Eye Relief: Unlimited
Lens Coating: Multi Coated Glass
Maximum Adjustment: 90 MOA
Reticle: 3 MOA Green
Power Source: 1 x CR2032
Battery Life: 30,000 hours (middle setting)
Settings: Automatic Brightness Control
Operation: Instant-On with Ambient Light Sensor
Dimensions: 1.6″(L) x 1.0″(W) x 0.9″(H)
Weight: 0.44oz / 12.47 grams
Housing Material: High Strength Thermomolded Polymer
Environmental: IPX4
Operating Temperature: -4F to 130F
Warranty: Limited Lifetime
MSRP: $189.00

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    • its 4 oz before it falls apart and what’s left mounted on the gun after it falls apart is .44 oz.


      (ok, I’m joking)

  1. Has anybody here compared red vs. green when your eyes have astigmatism? I’ve been told it can make a difference, but not directly by someone who has astigmatism and has tried both. I’ve been wanting to try one of these things, but the red laser dot from my bore sighter always appears distorted, and I imagine that even a red dot reticle will look to me more like a lumpy star than a dot.

    • Yes, I have, and it’s true. I have 3 differing types of the ‘stig’ between both eyes. Starburst, smearing, and multi-imaging. Green offers a bit more clarity v. the red and though still very present, less of all of the above.

      YMMV, everyone’s eyes are a bit unique, and mine more so than most being legally blind in both eyes at the same time. That said, I have an excellent optometrist, and 90% more is corrected via my prescription.

      Fun fact, a bore sight laser is invisible through any optic without my vision being corrected for.

      Piece of advice; don’t get older. My bifocals make properly employing irons impossible on any other than peest0lz due to different focal lengths and radius length. Front sight focus ends up with both the target & rear sights being very blurry.

      And, graduated (line-less) lenses increase prices considerably. My last purchase, a $200 special sale ended up being $750 a pair before tax, after the lenses were added in. So much for the “sale”, right?

      • Thanks for the info. I have no-line bifocals, and they play hob with my ability to see scope reticles that aren’t extended eye relief. Astigmatism kicked in about the same time, and didn’t help. Optometrist says eye surgery would likely help, but he sees a lot of folks need to have it done again later, which significantly increases the risk of complications. He recommended I stay away from that, unless cataracts become a factor.

        Time for new spectacles here, now. I was burning my way through the pile of sticks from the yard, and the wind switched at a wrong moment, and the heat from the fire caused the coating on these lenses to craze. Keep that in mind, folks, if you use Crizal or similar lenses with all the fancy coatings on them. They are more delicate than advertised.

        • I have astigmatism and the only micro Red Dot I’ve looked through that doesn’t flare bloom or squiggle are the holosuns with the acss reticle. For a long gun you can get a prismatic red dot and those work great.

        • @hawkeye

          Oh, good to know re: Crizal. I take good care of mine, but that’s not something I would’ve expected. Thanks for the info.

          Yeah, my optometrist recommended the same even though my vision has been relatively stable since my pre-teen years outside of the more recent need for bifocals. Contact’s likewise haven’t been viable for a long time.

          Once upon a time, one recommended the weighted stig contacts, to which I asked whether that would be a hindrance in high G maneuvering (driving road & rally racing used to be a favorite). Turned out that was bad juju, under hard cornering or jumps the lenses would of course rotate to the center of centrifugal force, causing vision obstruction by blurring the hell out of everything by making the astigmatism far worse temporarily. Was not amused, to say the absolute effing least.


          Circle dot works pretty good too, Vulcan is better though, no doubt. Dunno what it is about the doughnut of doom that helps focusing, but it does. Holographic are better still, aside from all their other issues, including compatibility with long arms only.

          Prismatic etched are awesome, nailed it.

        • Yes, having your contacts shift at the precise moment when you need to see clearly would be, um, less than optimal. I don’t do any high-G stuff, unless you include getting whacked in the head with a skillet every now and then, but that usually results in some momentary fogginess anyhow. I’ve avoided trying contacts most of my life because of dust (construction work most of my earlier years).

          Apparently, the ceramic coating on the Crizal lenses responds to heat differently than the plastic of the lense. If a quick flash of heat hits them, the plastic expands more quickly than the coating, and the coating develops permanent microfractures. Never gave it a thought until they were suddenly hazy and it didn’t wash off.

          Good info on the reticle styles too, thanks.

        • “I have astigmatism and the only micro Red Dot I’ve looked through that doesn’t flare bloom or squiggle are the holosuns with the acss reticle.”

          That’s because Holosun uses a grating filter that polarizes the light beam to form their reticle. (note: The Holosun’s are not holographic sights)

          Its why holographic sights (e.g. EoTech) look better to some people with astigmatism, because they use a grating filter.

          Normal red dots don’t use grating filters that polarize the light, so the astigmatism issue persist for people with astigmatism.

      • “Front sight focus ends up with both the target & rear sights being very blurry.”

        isn’t that how it is supposed to be when you focus on the front sight ?

        • To a degree yes. Nowhere near this badly, no. Wasn’t like this before bifocals, with regular glasses or contacts it’s normal.

          The difference is only a problem with the longer sight radius’s as on rifl3s and sh0tgun at least as far as my experience.

      • Any of you “Optically challenged” guys have suggestions on questions to ask in order to find a qualified optician for a gunguy?

        I’ve worn glasses since 3yr old (so decades). Far sighted with an astigmatism is all I know. The other terms above are unknown to me. BUT eyes certainly getting worse with age. And need to address. Seeing/ID at longish range (over 250m) has always been an issue.

        • If you’re actually in Iowa, you shouldn’t have a problem with telling your optometrist what exactly your needs are. Slave states may need some precautionary hedging around the subject obliquely, but you should be good.

          My guy’s Kool and the Gang, and I knew him beforehand.

          Ask around with the locals who you know personally are all good with for recommendations on who would be the best thing I can think of atm. Shops, optically impaired sho0ters at the range perhaps.

          I know my optometrist from the range for instance as I alluded to earlier, which was a bit of a shock when I came in for my appointment knowing him by name, but not his profession. The way we met is a whole ‘nother story in itself.

  2. When comparing standard red dot sights to others, etched reticle prism optics (green or red) are simultaneously the answer as well as the problem. First, they solve all of the “red dot” sight issues- astigmatism, loss of power, glare, etc. Once you’ve used an etched reticle prism optic- you’ll kick yourself for not looking into one sooner.

    And therein lies the problem- after you try one you’ll find yourself having to replace EVERY non-etched prism optic you own… which can get downright expensive. Seeing as how I put red dots on five (5) firearms before buying an etched reticle prism for a sixth- that’s A LOT of optics I’m having to replace.

    But it’s TOTALLY worth it…

    • Are there any etched sight prism optics that are daylight bright? I’ve tried a Vortex Spitfire and a Primary Arms SLx Compact 1×20 Prism, and neither of them had usable visible illumination in bright sun against a dark target, so they both ended up on 22LR range toys. I also tried a Holosun green circle donut reticle, and that’s nearly as starburst-y as a red one, to my astigmatic eyes at least. The red dot that’s the clearest with my particular astigmatism is my ancient Aimpoint Comp M2. I also have an Aimpoint ACO, which is much newer, and the dot isn’t as crisp. The Leupold Delta Point Pro with the triangle reticle was nearby astigmatism-problem free, but they discontinued that reticle – booooo!

      • I have not experienced any illumination issues with my PA SLx 1X Gen II green ACSS reticle MicroPrism. I have it on an Adams Arms P1 MOE 16″ .308 AR- and I LOVE IT!

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