Primary Arms SLx RS-10 1x23mm Mini Reflex Sight - 3 MOA Dot

Manufactured by Primary Arms
MPN: 810024
Manufactured by Primary Arms
54 Reviews

In Stock

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After rigorous field testing, this optic has been given a silver-tier rating by the National Tactical Officers Association.

This Primary Arms red dot sight is part of the SLx optics line. SLx optics built their reputation for innovation, reliability, and value. All SLx optics undergo rigorous field-testing during development to best serve you in any environment.

The SLx RS-10 is Primary Arms Optics’ first mini-reflex sight, designed entirely in-house. Embodying the values of the SLx family, the RS-10 brings unmistakable value and innovation with relentless field testing, proving its reliability when you need it most.

Weighing less than 1.1oz, this ruggedized mini reflex sight is made of 7075 aluminum and fits the commonly used Docter/Noblex footprint (Adapter plate for Glock® MOS included). This optic offers a true daylight bright 3 MOA reticle, multi-coated lenses, night vision compatibility, and an ultra-long battery runtime with a side-loading battery slot. Also included in the box is a low profile picatinny rail mount and a low profile adapter plate for the Glock® MOS system. As pistol-mounted reflex sights continue to grow in popularity, the SLx RS-10 offers a lot of functionality for its price, and as part of the SLx product line, it comes with a guarantee of quality alongside a comprehensive lifetime warranty.


  • Rugged 7075 aluminum body
  • Side-loading CR2032 battery compartment
  • Convenient push-button controls
  • Daylight bright and nightvision compatible brightness levels
  • 3 MOA dot optimal for handguns
  • Picatinny Rail Mount and Low Profile Adaptor Plate for Glock® MOS Slides Included
  • Multiple mounting options
  • Autolive motion activation
  • 40,000 hour battery life
  • Weighs just 1.07 Oz
  • Lifetime warranty
See More


Battery Life25,001 - 50,000 Hours
Battery TypeCR2032 3V Lithium Coin
BrandPrimary Arms
FinishHardcoat Anodized
Manufacturer.Primary Arms
MaterialAluminum - 7075
Mount CompatibilityDocter / Noblex
Night Vision CompatibleNight Vision Compatible
Optic SeriesSLx
Reticle3 MOA Dot
Reticle ColorRed
Weight1.07 Oz
  • Learn More About The Primary Arms SLx RS10 Reflex Sight
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

54 reviews


Great cheap optic


* Comes with pic rail mount
* Tactile feedback on windage/elevation screws
* Decent glass/dot clarity, good enough even with my mild astigmatism.
* Relatively small and lightweight with a great sight picture.

* Faired great at the range, time will tell if its durable and holds a zero, battery life etc. Right now, this is an absolute great optic at a great price. I'll be buying another.

Incredible optic

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Insane optic for the price. Crystal clear glass and very crisp dot. Easy to install and very nice that it came with different mounting plates. Immediately installed on my MP5 platform for a super compact option. Side opening battery door and brightness setting buttons are perfectly positioned and well designed. Most affordable and best built RDS on the market in my opinion. I will absolutely be buying a few more in the near future.

Great product

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This has got to be one of the best mini reflex sights on the market. Holds zero & very durable. I own Trijicon,Vortex,Burris, Holosun, but the Primary Arms SLX RX-10 in my opinion tops them all. I'm in the process of replacing all my mini reflexes to the Primary Arms SLX RS-10. THEY REALLY DID A GREAT JOB ON THIS ONE.

Great optic but might not fit sum Doctor mount


I have had been more than satisfied with the features and price point of any primary arms optic I have purchased. It co witnesses beautiful with my aks. On the dust cover rail on my PSA and tube rail on my yugo. Ran top on AR-15 as well. The only thing to be wary about is the doctor cut. I got a PSA dagger slide to try it on and the optic did not fit. It did work great on my gen 5 mos with provided plate. So it lives on my ak. Still want another one. And would recommend.

Solid red dot at this price point.

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Bought one of these to throw on a Walther PDP Compact 5". One thing to note - this does NOT fit the Gen1 Walther PDP slides. It's slightly too long, by maybe a milometer or so. This is on Walther, not PA, as they've had issues with the Vortex Venom and a few others. Not intending to return mine, I just sanded the front down until it fit. Now it looks nice and rugged.

Overall, glass is pretty clear. The unit feels solid and the brightness buttons feel nice and clicky, no mushyness like from cheaper red dots. The view/window is slightly smaller than a comparable Vortex or Holosun, but at this price it's pretty hard to beat. Size is somewhere inbetween competitive and concealed carry dots. Not the biggest, not the smallest. Not a bad first shot at all from PA on a pistol red dot.

Great Value

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Great value on this. Ive used on a glock 34 and as a backup sight on a competition AR. Comparable to a holosun 507 and costs significantly less.
Really love that it comes with a Glock MOS mount as well as a pic rail mount.

Great mini dot

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I don't know what else to say about it, the daytime bright is actually very bright and usable, it's a great size and it has Auto live for under $200. Will buy again

Not compatible with X5 Legion


So may confusing standards but to save you time, does not work with Sig X5 pattern.
Looks like a decent RDO otherwise, I'll just have to run it on something else with the included pic rail adapter.

Will not fit the PSA Dagger slide with the docter cut

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This is my first pistol red dot, so I have nothing to compare it to. Nice red dot, but the back end is a millimeter or two too long to fit into the docter cut on my PSA Dagger slide. I have the slide with red dot cutout in front of the rear sight. I am not sure if the problem is with the this red dot or the slide cutout.

Seems good


Dot looks good to me eyes. Doesn't fit dagger docter cut slide. Correct cut, but the shape doesn't fit.