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Primary Arms SLX Advanced Rotary Knob Compact Red Dot Sight

Based on 102 reviews
Condition: New
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$129.99
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Availability: Only 3 left in stock, order soon!
Fulfilled by Primary Arms

Arrives Saturday, Nov 7
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At a glance

Condition
New
Weight
157 g
Color
Black
Material
Aluminum
Style
Red Dot Sight
Sport
Airsoft, Tactical & Military
Magnification Minimum
1 x
Warranty
Limited Lifetime
Works with
Firearm, Airsoft Gun, Tactical Equipment

Features 5

  • Aimpoint Micro footprint with removable Picatinny base: Compatible with standard Aimpoint Micro and microdot mounts; includes a removable M1913 Picatinny base for direct rail mounting; weighs 5.5 oz with the base attached
  • 2 MOA red dot reticle: Ultra-sharp 2 MOA dot with 11 brightness settings controlled by a rotary knob; daylight bright at maximum output; rotary knob stops at "0" with the dot fully off to prevent accidental activation
  • Fully multi-coated lenses with ultra-low profile emitter: Fully multi-coated lenses deliver minimal lens tint and a clean, unobstructed sight picture. Aluminum turret caps with O-ring seals double as windage and elevation adjustment tools when removed
  • 6061-T6 aluminum construction: Hardcoat anodized matte black finish; waterproof construction with metal-to-metal turret cap contact for improved sealing; built to withstand the recoil of heavy-recoiling centerfire and shotgun platforms

Description

The SLx optics are the heart of our lineup. The trusted optics that have built our reputation through the years. Although many SLx optics will be familiar to Primary Arms fans, we are always pushing forward with new generations and adding even more options in response to the demands of our loyal customers. The Microdot, Removable Base, Advanced sight (MD-RB-AD) takes everything we learned from our popular MD-ADS microdot and refines it a step further. The Primary Arms Advanced Micro Red Dot Sight features an estimated 50,000 hours of battery life from the included CR2032 battery, powering an ultra-sharp 2 MOA dot. Fully multi-coated lenses and an ultra-low profile emitter ensure a clean sight picture with minimal lens tint. Eleven brightness settings are controlled by the rotary knob on the right side. The first two settings are compatible with night vision units and cannot be seen by the naked eye. The brightest settings are daylight bright. The illumination knob physically stops at “0” with the red dot turned off. This red dot sight is designed to work with heavy recoil and is constructed of 6061 aluminum with a Type II anodized matte black finish. Waterproofing is improved over previous models—for example, the turret caps are now aluminum instead of plastic and tighten down around the O-rings until metal-to-metal contact with the scope body. When removed, the turret caps can be used to adjust windage and elevation. It comes with a removable 1913 MIL STD Picatinny base. EXPORT CONTROLLED ITEMS: These items are controlled for export and may require an export license from the U.S. Government. Buyer acknowledges that Buyer is responsible for obtaining all export licensing authorizations and filing all export documents prior to export from the United States. MD-RB-AD features a 2 MOA dot, meaning the dot itself appears to cover roughly 2 inches of target at 100 yards. The 2 MOA dot offers an excellent compromise of both speed and accuracy. Magnifiers placed behind the microdot unit will result in a sight picture comparable to a traditional magnified scope. When looking through the magnifier, the dot will appear to “grow” in size. The dot always stays the same size relative to the target; magnification makes it appear larger.

Specs 20

Brand Primary Arms
Color Black
Style Red Dot Sight
Sport Airsoft, Tactical & Military
Item Weight 157 g
Material Aluminum
Magnification Minimum 1 x
Mounting Type Picatinny Mount

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Lifetime warranty and it appears to be a very good quality scope
Color: Black
That being said, the dot seems clear, I can't really say a lot about it yet because I haven't gotten a chance to try it out yet But I will update my review if there are any problems and since it has a lifetime warranty I have plenty of time if something isn't right with it, I bought it for myself for Christmas and I was ready to use it day one but it hasn't happened yet. .. I used a bore sighter to zero it in and it wasn't hard to do, in other words that aspect of it worked fine for me no problem... I like it a lot.. and without spending hundreds of dollars and reading a lot of reviews on multiple scopes on multiple sites even regarding the same scopes this one seemed To Me like a real good worry free buy . ... show more
Reviewed in the United States on January 3, 2019 by SECRET SHOPPER

Excellent quality, great customer service, and lifetime warranty!
Color: Black
Quality exceeded expectations! Red dot is clear and precise, no fuzziness. Optic window is roomy with 21mm of sight picture. Removable picatinny riser exposes Aimpoint Micro mount base, which allows for absolute co-witness using RS Regulate optic rail on AK47. Due to Primary Arms reputation for quality and durability, I fully expect the optic to hold zero and withstand rugged use. Includes lifetime warranty. ... show more
Reviewed in the United States on March 16, 2026 by Robert

Impressive, most Impressive!
Color: Black
This is so far a very impressive red dot, great price point, you can see the higher quality you get for the little extra you do pay for this come pared to Vortex, Bushnell, T1/T2 etc. This has held up well on the AK.
Reviewed in the United States on June 3, 2018 by Jesse

Great red dot
Color: Black
I have a several of the Primary Arms red dots along with several Aimpoints and Trijcons . The SLX is the best value I have used in red dot sights. Takes the same base and has same controls as my T2
Reviewed in the United States on February 23, 2020 by Amazon Customer

Unbeatable battery life
Color: Black
Purchased this in February of 2018. It’s been set on brightness level 3 since then and has not been turned off. Dot is still bright and crisp and has held up well in subzero winter temps and 100+ degree summer days. I paired it with an ADM lower 1/3 QD mount and I can take it off and put it on without any shift in zero. Definitely a good buy if you don’t want to pony up $600 for a T2. ... show more
Reviewed in the United States on July 10, 2019 by Konstantin Schonbachler

Good battery life and decent value .
Color: Black
Nice addition to my crossbow . Be aware there is some internal flaring depending on the ambirnt light but the sight is still usable .
Reviewed in the United States on October 11, 2019 by michael beck

Bad batch?
Color: Black
This recent one I received has a “loose” adjustment knob. When firing on my ak the adjustment knob moved between settings thus causing the dot to disappear. I have another one of this that works perfectly and has a very tight knob which functioned flawless. Although it is older and production. Maybe they had a bad batch? Idk, I’m waiting to hear if this can be fixed by PA as this cannot be trusted on any serious firearm. Will update rating depending on resolution. ... show more
Reviewed in the United States on January 21, 2019 by Kevin Mendoza

Coarse adjustments, 1 click = 1 MOA
Color: Black
Adjustments are too coarse. One click = 1 MOA. Previous Primary Arms sights were 1 click = 1/2 MOA. This change is not listed anywhere on the product descriptions.
Reviewed in the United States on March 14, 2018 by Thomas F. Beauchamp
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