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Primary Arms GLx MicroPrism 1x Prismatic Red Dot Sight
$354.99 $319.99 Save 10%
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Most Helpful Positive Review Excellent short to mid range optic
This optic is phenomenal. I already have the SLX 1x model. I would have bought the SLX again but Optics Planet had a president's day sale on the GLX for the same price as the SLX. I figured I'd try the GLX to see if it's any better. The thing I like most about the GLX over the SLX is the 1/2 MOA increments in adjustment as opposed to the 1 MOA adjustments for the SLX. This allows for a more precise zero process, although keep in mind it's only a 1x optic so it's not a huge deal. If you prefer push button illumination as opposed to a rotary knob, then you might prefer the GLX. As for glass clar...
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Excellent Optic

by Tom, Verified Owner from TN, United States Written on October 11, 2025
One of the best, perhaps the best optic available in my experience. High quality glass, etched reticle works without power, great daylight brightness, tough housing and great multi-configurable mount. Price is very reasonable for what you’re getting. Highly recommended.
Pros:
  • High quality design and materials
Cons:
  • None what so ever
Best Used for:
  • Perfect for carbines and subguns
Would recommend: Yes
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Awsome and clear

by jayb, Verified Owner from AZ, United States Written on September 20, 2025
Fantastic optic, especially with my astigmatism, super clear reticle.
Would recommend: Yes
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Crystal clear

by Jimmy2, Verified Owner from IA, United States Written on September 18, 2025
For only being a $300 optic, it is absolutly crystal clear! I'm amazed how clear the glass is for this price point. I actually ordered two of these because I like it so much. Good illumination even with a daylight target in the sight picture. Nice clear black reticle when the power is off or the battery is dead
Would recommend: Yes
1 of 1 found the following review helpful.
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Stigmatism and Poor Eyesight GLX-1X Optic Relief.

by Don, Verified Owner from VA, United States Written on September 10, 2025
Holy Mackeral! I can see finally see thru a 1x optic and can make precise shots! I use my GLX-1X with a Holosun HM3X magnafier and it lines up with the optic with the straight mount and when dialed in correctly its like a scope. Whether 1X or 3X I can see the Cheveron and ranging lines perfectly with no distortion. I have worn glasses and had a stigmatism my whole life and now with the invention of the diaopter and the GLX-1X I can focus on the target and not have a blurry mess. Thank you Primary Arms!
Would recommend: Yes
1 of 1 found the following review helpful.
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Great Optic

by DH2486, Verified Owner from FL, United States Written on May 28, 2025
Fantastic product with awesome mounting options. Worth every penny!
Would recommend: Yes
1 of 2 found the following review helpful.
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Crisp Optic

by Kiser, Verified Owner from VA, United States Written on May 19, 2025
Green etched reticle is a must for those with astigmatism. Looks great on and off, zeroed and fires like a dream. Might grab another.
Would recommend: Yes
1 of 1 found the following review helpful.
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Primary arms GLX 1X green prism

by akr, Verified Owner from OK, United States Written on April 28, 2025
Absolutely love this optic, super crisp and very clear. Would buy again. Have it mounted on my 300 Blk pistol.
Would recommend: Yes
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Excellent pricing, was $20.00 cheaper than Primary Arms

by Bench Rest Shooter, from IN, United States Written on April 19, 2025
Nice Clear Glass. Has a very usable reticle,that can be backed up with a magnifier, plus you have the optional "kill flash" that's also available, and also has "carry handle" hardware kit, that's also available, as an option.
Pros:
  • I prefer the green reticle.
Cons:
  • None
Best Used for:
  • Close Quarters, out to medium range.
Would recommend: Yes
1 of 1 found the following review helpful.
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Just what i was looking for...

by Lee T., Verified Owner from MD, United States Written on April 13, 2025
I was looking for an optic for my Flux Raider. Always been a fan of Primary Arms red dots, so i wasn't surprised with this one. I with with the green dot because of my astigmatism. I use to think it was just a matter of preference but its actually does help. If you're looking for a red dot bigger than your average pistol dots, this is the way to go.
Pros:
  • Great for eye relief, Small, lightweight, and durable
Cons:
  • so far so good
Best Used for:
  • Up to the shooter
Would recommend: Yes
Was it helpful to you? Yes | No
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