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First Look: Primary Arms SLx RS-10

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New from Primary Arms is the SLx RS-10, a mini red dot using the Docter/Noblex footprint.

Mini red dots have exploded in popularity over the past few years and are mostly found on pistols of all kinds. From duty weapons like the M17 to micro-CCWs like the SIG P365 or Springfield Hellcat optic ready pistols are being the industry standard.

Primary Arms has a long list of optics that have performed well in testing, but this is the first mini red dot entirely made under their name. Their last mini red dot was a collaboration between Primary Arms and Holosun.

The SLx RS-10 uses a Docter/Noblex footprint for mounting but also ships with a Glock MOS plate and a small 1913 Picatinny rail for more conventional mounting.

Loaded with some nice features the SLx RS-10 has a side mounted battery tray so the optic will remained zeroed even after a new battery, 40,000 hour battery life using a CR2032, Autolive motion activation, 3 MOA dot, and is night vision compatible.

Best all the SLx RS-10 has a lifetime warranty and MSRP is only $200. 

With features and a price to go up against some of the best on the market, it will be interesting to see how the SLx RS-10 does in testing!


  • Battery Life: 40,000 Hours
  • Battery Type: CR2032 3V Lithium Coin
  • Finish: Hardcoat Anodized
  • Manufacturer: Primary Arms
  • Material: Aluminum – 7075
  • Night Vision Compatible
  • Reticle: 3 MOA Dot
  • Reticle Color: Red
  • Size: Mini Reflex
  • Footprint: Docter/Noblex
  • Warranty: Lifetime
  • Weight: 1.07 Oz

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