Vortex Venom Enclosed Micro Red Dot: EDC and More

Vortex delivers a great enclosed micro red dot sight, capable of highly dynamic use.

September 25, 2025 By Rodger Holscher

Vortex has just released the Venom Enclosed Micro Red Dot Sight (MRDS), and I was excited to get my hands on it. I hesitate to call this a “handgun optic” because it can be utilized in many more ways than just on a handgun. While this optic lived on two different Glock 19 MOS handguns for this review, I plan to put the Vortex Venom Enclosed MRDS on an offset mount for my SPR rifle and on my Stoeger M3500 shotgun.

While the enclosed emitter micro red dot is not new for Vortex (they have the Vortex Viper Shotgun Enclosed Micro Red Dot), this is their first enclosed emitter micro red dot that can be put on various platforms. The Vortex Viper Shotgun optic and the new Vortex Venom MRDS do share a lot of similarities. The biggest difference is the mounting platform.

Mounting

accessories for optic — (Photo courtesy of Rodger Holscher)

Speaking of mounting platform, the Vortex Venom MRDS uses the widely available Delta Point Pro (DPP) pattern. This makes finding adapter plates and mounts for the optic an easy task. For this review, I used the MOS mounting plate that Vortex includes with the Vortex Defender ST. The Vortex Venom MRDS and the Vortex Defender ST MRDS share the same DPP mounting platform. The Glock MOS mounting plate is included with the Vortex Defender ST while the Vortex Venom does not come with a mounting plate. I'd venture to guess, that this is reflected in the Venom's incredible price point.

It is a nice touch to include a mounting plate with an optic (mostly because I use Glock MOS handguns), but it’s not a necessity. That goes towards what I was saying about this Vortex Venom MRDS not just being a “handgun” optic. It would be hard to nail down what firearms people would be using this optic on. What they do include with the Vortex Venom Enclosed Micro Red Dot optic are 5 plastic bags, with each bag containing 4 mounting screws. These screws are labeled for the different handgun platforms that this optic could be used on. They also have thread locker already applied, which is a nice touch.

Competition

birds eye view of foot print — (Photo courtesy of Rodger Holscher)

Throughout my career in Law Enforcement as a Firearms Instructor and Armorer, I have been fortunate to test and evaluate a lot of different handgun optics. I was able to put the Vortex Venom MRDS up against several different optics that are currently being employed for duty use at my department or are being evaluated (see attached photographs). Throughout the evaluation process I compared the Vortex Venom to the following optics: Holosun 509T, Holosun EPS, Burris Fast Fire E and the Vortex Defender ST. The only one of those optics that is not an enclosed emitter optic is the Vortex Defender.

3 red dots side by side — (Photo courtesy of Rodger Holscher)

The viewing window on the Vortex Venom Enclosed Micro Red Dot Sight was large but not too big. The housing is made from 6061 aluminum, is waterproof and well finished. The operating buttons for the optic are on the top of the unit. I have grown to prefer the buttons to be on top of the optic. This helps to be able to use the buttons fast and from any position. If the buttons are on the left side (or one on each side like the Vortex Defender ST), if you mount the optic on an offset for a secondary optic, it makes it hard to get to the buttons up against your primary optic. This will be no problem for the Vortex Venom MRDS.

Battery and Adjustments

fitment of sight in holster — (Photo courtesy of Rodger Holscher)

The elevation and windage adjustments on the Vortex Venom MRDS are subdued in the housing. They use a small flathead screwdriver, or you could use the included multi-tool to adjust the optic when zeroing. The housing around the adjustment screws is marked either U with an arrow (for elevation) or R with an arrow (for windage). Also, under the U for elevation, Vortex etched “1 Click = 1 MOA." I can’t tell you how many times I have tried to zero a red dot optic on a handgun and had to look up in the manual what the click value is for that particular optic. That was well thought out by Vortex. Even without the MOA marking on the elevation and windage adjustments, they are tactile and audible, so you know how many “clicks” you adjusted.

The battery for the Vortex Venom Enclosed Micro Red Dot optic is a 2032-coin battery. The battery compartment for this optic is on the right side. This makes the battery easy to access. The battery cap has a cross cut out to use either a flathead screwdriver or the included tool to tighten down or loosen the battery cap. The battery compartment does protrude off the right side of the optic.

two red dots for size comparison — (Photo courtesy of Rodger Holscher)

The location of the battery compartment did give me a fitment issue in one of my duty holsters. When trying the optic in my Safariland 6365 RDS ALS/SLS holster, the optic's battery compartment would catch on the outside lip of the holster when I attempted to re-holster the handgun after shooting. With my Safariland 6390 RDS ALS holster, I just heated up the holster and flared out the right side a little bit, and the battery compartment cleared just fine.

The Vortex Venom MRDS mounted on my Glock 19 in a Blackhawk T Series Level 3 RDS holster and did not have the above issue. I also did not have a problem with the Vortex Venom Enclosed MRDS fitting in an Alien Gear Rapid Force Level 3 Duty Holster with the XL hood or an older level 2 (no hood) Alien Gear Rapid Force Duty Holster.

EDC Evaluation

pistol on table — (Photo courtesy of Rodger Holscher)

I carried the Vortex Venom Enclosed MRDS mounted on a Glock 19, concealed daily. I had zero issues with the size of the optic or it printing because of the battery compartment. I carried it exclusively in a Nightfall Customs “Married Appendix” holster and had no issues with the optic fitting.

One of the Glock 19’s I mounted the gun on was a stock Gen 5 MOS with factory standard height sights. The other was a Gen 4 MOS with Ameriglo XL height suppressor sights. The Vortex Venom Enclosed MRDS (along with all other DPP footprint optics that I’ve used) sits higher on the slide. This did not allow me to co-witness my Ameriglo XL height iron sights. That is not really a big deal for me though. Knowing that I would just buy the Ameriglo XXL sights and the problem would be fixed. I tend to not even spend the money on higher iron sights anymore unless it’s a duty gun or my primary CCW weapon.

The glass is exceptionally clear and crisp on this Vortex Venom Enclosed MRDS. Vortex uses “aspherical lenses” to create a clear distortion-free sight picture. This allows for a clearer edge-to-edge sight picture without feeling like you are looking through a fishbowl. There is no perceived magnification and very little tinting on the glass. This gave me a very clear picture with good contrast. The dot is sharp, but like all dots that I have used, the dot can starburst if you have it too bright for the lighting conditions.

The dot on the Vortex Venom Enclosed MRDS that I tested was bright red in color. I would imagine that Vortex might also make a green in the future. The dot size is 3 MOA, which is a size I have grown to love. That size is small enough to make precision holds but big enough to be able to see without needing the dot to be so bright.

Impressive Results

man shooting pistol — (Photo courtesy of Rodger Holscher)

While shooting with the Vortex Venom Enclosed MRDS, I was able to make impacts (about every three shots) on an 8” steel plate at 200 yards (standing unsupported).

In the manual, Vortex says that if you run the optic at setting 6 for 12 hours a day, you will get 40,000 hours (or 1,667 days) of battery life. The Vortex Venom Enclosed MRDS has 10 daylight brightness settings and 2 night-vision. For reference, working a graveyard shift, I would run the optic at setting 4 or 5.

The Vortex Venom Enclosed MRDS has some nice user-programmable features. The optic has an Auto-Shutoff feature that can be turned on or off by holding down the “+” and “–“ buttons together for 3 seconds. With that mode activated, if the optic isn’t moving for 10 minutes, the optic will shut off. As soon as there is enough motion, the optic will turn back on at the brightness setting you had it on. If you manually turn off the optic (holding down the “-“ button for approximately 5 seconds), the motion activation will be turned off. That way, if you don’t want the optic to turn on, your optic will not waste battery life. The Vortex Venom Enclosed MRDS optic also has a button lockout feature, so you don’t accidentally change your brightness setting.

pistol with red dot — (Photo courtesy of Rodger Holscher)

This was not a long-term durability test of this optic. It was more of a first impressions type of review, and my first impressions were great. I cannot speak to the long-term hard-use durability of the optic, but I do not have any concerns as of now. I would be shocked if I had any issues with it. But if I did, Vortex has an excellent warranty program. The Vortex Venom Enclosed MRDS would be a good buy for anyone looking for an enclosed micro red dot optic that would be at home on a handgun, rifle, or shotgun. The Vortex Venom Enclosed MRDS is simple on one hand and feature packed on the other.