Primary Arms MD-RBGII Classic Series Gen II Removable Microdot Red Dot Sight

Manufactured by Primary Arms
MPN: 810011
Manufactured by Primary Arms
224 Reviews

In Stock

Standard orders will ship out 2 business days if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.

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The Classic Series™ proves that entry-level optics don’t have to be poor-quality optics. Unlike some other brands, we don’t use the word “value” as a euphemism for “junk”. Classic Series scopes are perfect for the budget-conscious and the new shooter. We take the time to 100% inspect every product in our facility here in Houston to ensure you are receiving the best quality product as our other three tiers. These scopes are backed by the same excellent customer service and support as all other Primary Arms products.

This Primary Arms Microdot sight is our second-generation model that comes in at an affordable price while retaining excellent quality and durability. We have included a MIL-STD-1913 Picatinny rail mount with this red dot sight, so you can attach it to your rifle right out of the box in a matter of seconds and head to the range to get it sighted in. Alternatively, the mount is removable and features mounting options for other standard microdot riser mounts, so you can customize the height and co-witness with your iron sights. Adjusting the zero of the dot is made easy with the 1/2 MOA audible click adjustments that are protected by aluminum caps. Also included with this optic is a bikini lens cover to protect the glass when not in use. If you are in the market for a red dot sight for hunting, target shooting, or competition, you can’t go wrong with the Primary Arms Microdot.

  • Approx. 1,000-hour battery life at medium setting
  • Daylight Bright illumination
  • Uses one CR2032 battery (included)
  • Includes removable Picatinny rail mount.
  • Compatible with standard micro mounts and gives stated co-witness
  • Crisp 2 MOA red dot
  • Fully multi-coated anti-reflective lenses
  • 11 Illumination settings for bright days and night vision compatible
  • Absence of parallax shift past 33 yards
  • Waterproof to 6ft. with turret caps on
  • Water-resistant with turret caps off
  • Fog resistant
  • Bikini lens cover included

This micro red dot sight features 1,000 hours of battery life on a single CR2032 battery with 11 different illumination settings that can be quickly cycled through for use at night or on a bright day. This red dot sight is even compatible with night-vision equipment to further extend its range of uses. The 2 MOA red dot is extremely crisp and allows you to take quickly aimed shots at short range while still giving you the ability to make effective shots at medium ranges. The glass that the red dot is projected on is fully multi-coated to reduce reflection and provide a clear sight picture. The glass and electronic internals are covered by a durable, black hard coat anodized, 6061 aluminum housing with O-rings providing protection from water and fog. Because we are so confident in this microdot, we decided to offer it with a lifetime warranty. If you are serious about home defense or target shooting, this red dot sight will get the job done.

Built on the foundation that customer service is the most important product/service a company can offer, Primary Arms is dedicated to meeting the need of every customer with the utmost respect. Not only do we provide excellent customer service, but we also offer fast shipping and competitive prices on everything we sell. If our foundation is customer service, then our structure is the increasing line of high-quality, dependable optics designed right here in Texas. Our goal; to provide firearms enthusiasts, professional shooters, and servicemen, and women the right tools for the job at an affordable price.
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Battery Life1000 Hours
Battery TypeCR2032 3V Lithium Coin
BrandPrimary Arms
Brightness11 Settings
Click Value1 MOA
FinishHardcoat Anodized
ManufacturerPrimary Arms
Night Vision CompatibleNight Vision Compatible
Reticle2 MOA Dot
Reticle ColorRed
Weight4.2 Oz

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Great optic for a great price....


I couldn't be happier w/my purchases. Primary Arms (PA) has a lot to offer the shooting comunity, a multitude of products for every budget, &a customer service department that is 2nd to none! I would personally like to thank Jeff first &foremost for his military service &also for his dedication to his job at PA &to the end users! So far I have ordered (2) of the micro dots w/removable bases MD-RBGII, they're a great optic for a great price! Comparable optics w/2MOA dot capability will run you 5 to 6 times the price of the MD-RBGII, & w/out offering you a better optic! For the price &for being made in the USA, there isn't a better optic out there! Form, fit &function these optics are everything I expected plus more! I am 100%satisfied &would recommend this company &all of their products to my friends, family &complete strangers that ask me about my AK's &the optics that sit on top of them! Thank you Primary Arms for making all my purchases painless &fun!

Great service


I had this product in my hands only a couple days after ordering it. I mounted it right up and it works great on my AR as a replacment for my strikefire 2. My only gripe would be that the first 3 brightness levels don't actually show a dot.



I have an older pa rds and they just keep getting better the glass is clear the dot has great brightness range and they are tough. Can't get a better rds in the price range.

Sweet piece of gear!


I have installed this red dot on my AK 47, then on my Ar-15. With a little tweeking, the sight worked fantastic.Just might buy another soon.Thanks folks!

Primary Arms MD-RBGII


I have not yet used my new red-dot, so all I can say is that it appears to be well made.

Excellent value


I have only had the opportunity to take one range trip with my new micro dot sight so far, but it performed great. Time will tell how well this sight will last me. However, I think that for the money invested in this product, that it will easily last me through anything I face. I am thrilled with my purchase here and will gladly come back for other merchandise I'm the future.

PA Micro Dot


I have several EOTechs, M68's, and a other high end red dot sights. When you figure you can get 5-8 Primary Arms red dot sights for the price of one of the high ends there is no comparison. The product itself is extremely high quality, very light, rugged enough, and locks up tight. What else do you want for under 100 bucks?

Awesome optic for AR15


I have yet to use this optic however from the box the construction feels solid. For basic target shooting this is perfect. I highly doubt I'll need a $700 aimpoint for target shootinf. This is a great alternative and the best part most all T1 mounts work. NOTE YOU WILL NEED A RISER.

Microdot with removable base.


I haven't been to the range yet, but the sight appears to be good. The red dot is sharp and clear and the design will help train me to keep both eyes open. One issue I had was mounting the rise to the sight. There were no instructions, but I finally figured it out. I didn't realize it at the time I made my order that the diameter of the tube was so small, when using my pop-up iron sights, all one can see in the MicroDot viewer is the iron sight, front and rear, so this will not work to co-immage. The microdot would be fine if one never used the back-up sights.

Micro Dot MD-RBG


I installed this on my CNC warrior m92 w/midwest industries forward rail and I was able to co witness with iron sights. I havent given it a torture test as of yet but so far 200rds down range and still holding.