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
Manufacturer.Primary 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



Love it. Great quality. Can't wait to buy a couple more.



Love the optic. Easy to install and adjust.

Red Dot


Love the RBG11, Great red dot. Had to return first RD because of stripped base screw. A call to Primary was answered by very helpful person and problem solved, and I received new RD. I would have lacked to had and email regarding shipping. Would buy from them again. They have Excellent products and service.

Great product, quality and price.


LOVE the red dot sight. It was delivered almost instantly and everything about it was exactly as advertised.

good product


love these red dots. I use them on my .22 rifles, just the other day I dropped my rifle from about 3 1/2 feet right on the red dot. my first thought was huh ooh. I loaded it and shot at a target and it was right on.



Love this optic. Dot is really nice and crisp like mentioned in its description l. The over all feel of it does feel and look like a more expensive optic like the Aimpoint. It does have a slight blue/green tint thats a little dark in low light but you hardly notice when aiming with both eyes open. Held zero find even after 500+ rounds at the range. I purchased the primary arms lower 1/3 mount with no quick detatch and ít does the job and is very solid but I would upgrade to a quick detatch if able to. Over all a fantastic opric for the price and like stated in comments before. .the pics fo not fo it any justice

Awesome optic


Love this thing, held zero well on my AR and the customer service is amazing!

Great and affordable


Micro dot has great overall quality, construction, and performance. Recommended.

This thing is dope!


My cousin told me to get this because I'm not going to spend a bunch of money on a red dot when I got a baby on the way. But I wanted to be an operator so I had to go with this optic! He was right! Now I can kill all the bad guys and still not be in too much trouble with my wife!



My wife picked this one out for her rifle along with the radical arms riser.I found that the base screws were to short to install the RA peice and that 2 of the thread's on the bottom of the PA dot were slightly stripped. I was able to fix this with slightly longer screws and red locktite.The red dot functioned as designed and held zero after the rifle was dropped a few times. Was considering a PA rifle scope but now having second thoughts.