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Viper Red Dot - 6 MOA Dot (VRD-6)
The Viper Red Dot's super-low mounting height makes it the perfect solution when there are no cutout slides. The Viper gives the simplicity and speed advantage of a dot sight, while co-witnessing with iron sights. The trade off? Nothing. The 6 MOA dot diameter gets on target fast.
Fully multi-coated, ultra-clear lens offers a wide, unobstructed field of view. The left-side up/down power and illumination controls are easy to access and manipulate. Recessed 1 MOA windage and elevation adjustments are super clean, protected from incidental contact, and always at the ready. It runs on a CR 2032 battery. The Viper comes with a Picatinny mount-weighs 2.1 ounces with mount.
6 MOA Dot Reticle
The daylight bright red dot is easy to see and paints targets regardless of lighting conditions or background.
Up to 150 hours of use at highest setting.
Use at the more common lower settings can allow up to 30,000 hours.
Windage and Elevation Adjustment
The Viper features adjustable elevation and windage dials with 1 MOA marks.
To adjust the elevation and windage settings:
1. Loosen both Adjustment Lock 1½ turns.
2. Adjust dials up or down or left or right as indicated by arrows.
3. Re-tighten both locks after making adjustments.
Mounting the Viper
The Viper red dot is shipped from the factory with a low rail mount that clamps to both a Weaver or Picatinny rail.
1. Attach the low rail mount to the Viper using the included hardware.
2. Attach the Viper to the Picatinny base rail, making sure the recoil lug is solidly seated in the base groove.
3. Check to see that the clamp is fully down and hooked around the outside of the base.
4. Press the Viper down and forward and using the supplied hex wrench, firmly tighten down the clamp.
In addition to the supplied low rail mount, an optional riser mount is included.
Kim
Reviewed in the United States on March 2, 2025
Retired SWAT officer. I bought this Dot for the price point and put it on my optic,It has adjustable brightness, holds zero, turns on every time I pick it up. This is my daily carry and i put about 1200 rounds a month through it. Highly recommend this dot and the seller.
jerry hargrow
Reviewed in the United States on February 28, 2025
Look nice can’t wait to try it out!!!
Luke
Reviewed in the United States on January 15, 2025
Hold zero very easy to install.Highly recommend.
Carrie_Lynn
Reviewed in the United States on September 25, 2024
This product exceeded my expectations with its perfect fit and remarkable durability. I was delighted to find that it also comes at a great price.
Glockdoc
Reviewed in the United States on July 3, 2019
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CT
Reviewed in the United States on March 5, 2019
Excellent optic for pistol, especially Glock MOS.MOS SCREWS:Mine came with the screws for the Glock MOS. After reading other reviews that said to call and ask for them, I did, only to find out that once I received the MOS screws, they had already been included. They were not labeled in the original package, so I included a picture so that you can identify the MOS screws in case they are in your package (the screw on the penny is the MOS screw).MOS INSTALLATION:I read other reviews on various sites that discussed the need for a shim or gasket from UM Tactical and also filing down the tabs on the MOS plate number 1. Neither of these are necessary. Perhaps they were at one time, but they are not necessary now. Just mount to MOS plate. I used Blue Loctite 242 on the MOS plate and torque to 13 inch pounds. I used purple Loctite 222 and torque to 12 inch pounds. I think these are the recommended specs. No problems.OPTICThis optic is fantastic. It sits really nice and low without any distracting hood. The dot is a perfect size with a lot of adjustment.I tried a milled Glock 17 years ago with Trijicon RMRs and gave up because I didn't think the technology was there yet. I started with an RMR RM05G and the glass had some magnification and fishbowl effect and a really deep magenta tint. It really wasn't very clear at all. so, I sold that and tried and RMR RM06 hoping that the LED version would have less tint. It did, but it was still magnified and fishbowled and really blue tinted. The RMRs are supposed to be so reliable, but my RM06 would flicker in and out (very common if you read around). So, I tried the Trijicon sealing plate, and a tape shim, and still had issues. I just gave up and sold it all. I do love Trijicon and have some of their scopes, but feel this is a much better optic for a MRDS pistol platform.The optical quality on this unit is much clearer with much less tint. It also has a less distracting shape without the hood ears of the RMR poking up. It also has a bigger optical window for a more forgiving presentation and shot recovery. I like the Vortex Viper much better for a pistol optic.I also prefer the brightness adjustments on one side compared to up on one side and down on the other. When placed on two sides, it is difficult to remember which one is up or down under a timer or stress. When on one side, it is much easier to know that forward is up and back is down. Also easier to manipulate without much changing of the "thumbs forward" grip compared to buttons on each side. I have no need for an auto-adjust, as I really like to select dot brightness based on the application (speed, precision, transitions, etc.)I selected the Viper over the Venom because of its lower position on the side, as I feel that this makes it easier to use when coming from using iron sights.IMPROVEMENTSThe only thing that I think could be done better would be to relocate the windage and elevation locks so that they could be locked/unlocked without removing the optic or rear sight. They should be located on the side or top.
Tsunamistheman
Reviewed in the United States on July 8, 2016
I purchased this Vortex Viper Red Dot for my Glock 40 MOS Gen 4. I have the pros and cons listed out from my experience with the ViperPros:Affordability: First off this is a very reliable unit for the amount of money I spent on it. It held zero throughout the couple hundred rounds of high powered 10mm I ran through my Glock.Low profile design: This fits and looks great on my Glock. I have adjustable target sights on the Glock and I could almost co-witness. If I has suppressor sights it would be perfect.Battery life: I never powered down the unit, just let it shut off after the 14 hours being on and never had to change the battery for the couple months I had it mounted.Cons:Design flaws: This was the only real issue I had with unit. First issue I have is the battery is loose under the unit, there is nothing preventing the battery from becoming jarred loose from the unit. If mounted properly this should never happen but I just didn't like the chance. Second thing is the adjustments for windage and elevation. Let me start by saying this was a pain. Once mounted the screws to unlock the windage and elevation adjustments are blocked by your rear sights. You either have to find a way to loosen/tighten the screws from an angle or remove your rear sights. If you had suppressor sights you would not be able to adjust this at all without removing it.Once I was able to get the Red Dot sighted in, I had no other issues in the red dot. I would recommend this to a friend who has time to sight in the Red Dot.
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