The Classic Series proves that entry-level optics don’t have to be poor quality optics. Unlike some other brands, Primary Arms doesn’t use the word “value” as a euphemism for “junk”. Classic Series red dots are perfect for the budget conscious and the new shooter. Every product is inspected in their facility in Houston to ensure you are receiving the best quality product as the other three tiers. These red dots are backed by the same excellent customer service and support as all other Primary Arms products. The Primary Arms MRSC Micro Reflex Sight is a continuation of the new line of red dot sights designed specifically for mounting to pistol slides. The Micro Reflex Sight is optimized for compact and micro compact pistols for concealed carry as it features a slightly smaller 21mm lens to keep the profile as slim as possible when mounting on smaller pistols eliminating any overhang on the slide. Even though the lens is smaller than the mini, the square profile offers an unobstructed field of view allowing you to have a clear sight picture every time you present your pistol. It utilizes the RMSc footprint for a wide range of compatibility with milled slides and adapter plates and houses a bottom mounted CR2032 battery offering up to 40k hours of battery life on the medium setting. With 10 total illumination settings, and a daylight bright 3 MOA red dot, this reflex sight is sure to be quick to pick up and easy to use. The lens is fully multicoated for scratch and fog resistance and the 6061 Aluminum housing is extremely durable. If, you are looking for a new red dot for concealed carry you can’t go wrong with the Primary Arms MRSC Specifications for Primary Arms Classic 21mm Micro Reflex Sight: Manufacturer: Primary Arms Color: Black Finish: Anodized Fabric/Material: Aluminum Objective Lens Diameter: 21 mm Reticle: 3 MOA Dot Adjustment Type: MOA Emitter Type: Open Battery Type: CR2032 Battery Quantity: 1 Water Resistance Level: Waterproof Shockproof: Yes Fogproof: Yes Gun Make: AR Platform Gun Model: AR-15 Condition: New Package Type: Box Quantity: 1 Red Dot Sights-Footprint: RMS Features of Primary Arms Classic 21mm Micro Reflex Sight: Fits RMSc footprint Compact 21x15mm lens Optimized for micro-compact pistols 3 MOA Red dot Includes CR2032 battery Up to 40k hour battery life 10 Brightness settings Compact and lightweight design Fully multicoated lens Backed by Primary Arms Optics Lifetime Warranty Package Contents: Primary Arms Classic 21mm Micro Reflex Sight
5 reviews for Primary Arms Classic 21mm Micro Reflex Sight
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KM –
Have this mounted on my G48 MOS. Several hundred rounds with it, no issues and holds zero. Allows for co witness with stock sights. Aluminum housing feels solid. Would be nice to have an audible/tactile click on the adjustment and shake-awake, but for the price it does the job.
KC –
I put this on my Glock 43X MOS. The 43X requires an optic plate for some other optics, and I wanted to co-witness stock sights, so I chose this. I like the 3 moa dot size on these smaller window optics. The up/down buttons are in the right place, on opposite sides of the optic. The glass is clear, and the dot is nice as well. I do wish it had shake awake, but turning it off when not in use isn't too bad. The battery is under the optic, but it is a bigger 2032 battery, so it should last a year at least. One thing that I didn't like was that the included screws didn't fit the 43X.
Adam S. –
I've been pleased with the Primary Arms Micro Reflex sight on my Ruger Mark IV target. Just the right size and brightness. Took some adjusting first time at the range, but performed well.
Tom Hayes –
This dot has been great. Holds zero, is clear, small overall and carries well. Battery life is also good. The only bad thing is no shake- awake.
x –
So far so good , no pros no cons just overall good for price point. Would recommend for new gun owners.xx