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.

Receive FREE shipping on your entire order when you purchase this item.



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

These guy's keep getting better...


Back ordered..... already! I got mine and it is great especially for the money. Glad to see people getting on the band wagon with this excellent company, great service, great product and stand behind their product 100%. Dealing with these guy's is like the old day's when you could trust a man's word.

Great Value, Rock Solid...


Bought this sight for my Limited AR. Dot is solid and round, feels well made and more solid than the Bushnell version. Would've rated this "Excellent" if the dot brightness setting was able to adjust both directions instead of clicking through all the settings to get to the brightest setting...

Best budget reddot & customer service experience.


Bought this sight with a weaver tactical 1/3 co witness from Amazon. Brought it to the range and mounted it atop my first AR build. Shot around 150 rounds benched. Worked great. Brought it home and the brightness dial had stopped working, emailed PA and within the day had already gotten the return address and package number. They shipped a replacement the day they received the defective model. They shipped it Thursday and by sat morning usps had it to my door, hows that for customer service!

Great little sight


Bought two of these for a pair of Rifles I recently got and they are great optics. Ive had one for 2 years on an AK that is rock solid also



Called customer service for info. before ordering. Representative was knowledgeable, and very helpful. Micro Dot and riser arrived quickly. Products appear to be high quality and were well packaged. I have not used the sight yet but so far I am very pleased.



Crisp and clear, holds zero. Great quality product too.

Bright, accurate, solid.


Dollar for dollar, why would you look anywhere else for a solid performing micro dot? And the confidence I get from knowing it has the Primary Arms name on it means if there is a problem, they'll stand behind the product.

Dot is not quite round


Dot is a little blurry and oblong but holds zero well. Over all I am happy and would buy again. Service was great as always!

Nice sight


Emailed PA to ask what micro sight to buyAnd was recommend their in house brand overthe Bushnell, and even over their more expensive one. Seems nicely made and co-whiteness is perfecton the HK 94 clone with a B&T low mount. Excited to try it out, seems a nice deal for the money.Crazy fast shipping! Always very pleased with PA.

Best bang for the buck


Everyone knows .30cal+ firearms put optics to their test. Well this dot is an A student. This one is for a mini Draco and fits great on a MI quad rail. Shipping is fast and precise, customer service with PA is great and they no the products. Recommended for anyone who wants great construction and performance of an industry leading teir1 optic without the "government will pay for it" price tag