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Reviews & Ratings for Primary Arms SLx RS-10R 1x23mm Mini Reflex Red Dot Sight — 10 reviews

(10 reviews)
Primary Arms SLx RS-10R 1x23mm Mini Reflex Red Dot Sight
Primary Arms SLx RS-10R 1x23mm Mini Reflex Red Dot Sight
$234.99 $199.99 Save 15%
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Most Helpful Positive Review Very Good Dot
This is an amazing RMR footprint dot. I was initially wary of ordering this since the original RS10 was not received well and had known refresh rate issues. Primary Arms resolved that entirely with this model. The fitment into and RMR/507C optics footprint is excellent. The optic overall feels very robust and durable. The glass on this has minimal tint and the dot clarity is on par with my Trijicon RMR HD which was surprising to me. Overall I'd say this is the best RMR footprint red dot in this price range even against Holosun. Also, you get the Primary Arms warranty of anything goes wrong. De...
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Very solid sight

by gsyp, Verified Owner from PA, United States Written on April 2, 2026
I threw it on my ap5 and it holds zero perfect, the red dot is crystal clear, easy to function. For its price I'd definitely grab one
Would recommend: Yes
1 of 1 found the following review helpful.
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Exceptional for the price.

by Cas, Verified Owner from CO, United States Written on March 17, 2026
Affordable optic that does exactly what's expected.
Would recommend: Yes
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SOLID option. does what you want at a fantastic price.

by Steven T, Verified Owner from NY, United States Written on January 23, 2026
This thing is Solid. You can’t beat it for the price. Very well made. Has the key feature of shake awake. Unless you want an enclosed emitter style this is perfect. It looks almost identical to SIGs romeo1 pro. Functions the same and wayyyy cheaper. Plus it comes with the rail mount so you can mount on a rifle shotgun or handgun!
Pros:
  • None
Cons:
  • None especially at price point
Would recommend: Yes
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Primary Arms SLx-10R 1x23 mini red dot

by none, from MI, United States Written on December 28, 2025
Asum product great fit came with all exta instale parts Direct fit for my walther pdp pro 9mm . Fast delivery.
Would recommend: Yes
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Great optic!

by Sean, Verified Owner from SC, United States Written on December 21, 2025
It’s a durable compact little optic that is strong enough to have found its home on my Beretta A300! It’s clear glass and shake awake check all the boxes for a good duty optic!
Would recommend: Yes
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Perfect for my Ruger Mark IV

by Ed the Jackle, Verified Owner from PA, United States Written on October 30, 2025
Unlike many red dot sights, this sight is delivered with a Picatinny rail adapter pre installed yet low profile enough for the pistol. Sight has easy to use elevation and windage adjustments.
Pros:
  • value
  • Easy to use & Durable
  • picatinny rail ready
  • varable illumination
Cons:
  • None
Best Used for:
  • pistols
Would recommend: Yes
1 of 1 found the following review helpful.
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Great Optic!

by Roadblock, Verified Owner from AL, United States Written on October 27, 2025
I placed the Primary Arms SLx RS-10R red dot optic on my Gen 5 Glock 20 10mm. Optic was easy to install, zero, and is very clear. I have astigmatism and this dot is very clear for me. I've only fired about 100 rounds with it so far but it's maintaining zero and hasn't loosened at all.
Great value optic
Pros:
  • Features & power source options
  • cost & performance
Cons:
  • None for me
Best Used for:
  • rifle
  • handgun
  • shot gun
Would recommend: Yes
2 of 2 found the following review helpful.
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Great lil red dot

by Norman, Verified Owner from NC, United States Written on October 22, 2025
Nice red dot mounted it on top of my prism optic and it holds zero well.
Pros:
  • GREAT PRICE
  • nice glass
  • small and compact
Cons:
  • None
Would recommend: Yes
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another solid red dot by primary arms

by john H, Verified Owner from MN, United States Written on September 22, 2025
This is my second pistol red dot from primary arms. Works great. Fits well on my slide, nice and snug.
Would recommend: Yes
3 of 3 found the following review helpful.
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