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Reviews & Ratings for Primary Arms SLx Full Size 3X Red Dot Sight Magnifier — 5 reviews

(5 reviews)
Primary Arms SLx Full Size 3X Red Dot Sight Magnifier
Primary Arms SLx Full Size 3X Red Dot Sight Magnifier
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Most Helpful Positive Review Works Great, with a Gen II PA Cyclops Prism
I had to run my Cyclops Diopter all the way in and the magnifier’s all the way out, but it works great! The only reason I’m not giving it a 5, is because it leaves almost a 1/4” gap between the two, with no way to get closer. I ended up getting the PA flip to side mount, without the button, and a 1.93” spacer to line up with the Cyclops, which also had a 1.93” riser. My suggestion to PA is to a.) include a FTS mount and make it a quick attach/detach. Most of the time, I have it off, for my home defense rifle. Leaving it on, adds undesirable weight. b.) improve the length of gap, as much as po...
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Great Magnifer

by Pat Brewer, Verified Owner from MD, United States Written on April 26, 2024
This is a great magnifier! It is very clear and sturdy! I purchased the newest flip to side mount with 1.93 riser and it all fits well as well functions without any issues. I would highly recommend it!
Would recommend: Yes
Was it helpful to you? Yes | No
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Wasted time and money

by Phillip Leon, Verified Owner from NY, United States Written on February 29, 2024
OP paired this magnifier with a mount I was purchasing and they are completely incompatible. Now I have a magnifier with no way to attach it, and a mount with nothing to use it.
Would recommend: No
0 of 5 found the following review helpful.
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Magnifier for a Great price!

by Connor Shaw, Verified Owner from MS, United States Written on November 22, 2023
I bought this for my ak which has a lengthy eye relief on the red dot and wanted something for the price. Found this and decided to jump on it. I ordered with a mount cause this doesn't come with one which is fine, just means I can choose which one I wanted. Paired it with a Holosun AEMS using a lower 1/3 mount and the spacers Included helped line it up! I'm very satisfied with my purchase.
Pros:
  • Price
  • eye relief
  • compatability
Cons:
  • None
Best Used for:
  • red dots
  • Holographics
Would recommend: Yes
Was it helpful to you? Yes | No
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Another great product from PA

by B, Verified Owner from AZ, United States Written on September 21, 2023
I run this in a PA flip to side mount at lower 1/3 co-witness Rock solid sitting behind multiple red dots and Eotechs. Flawless performance running all day on various battle rifles and fighting rifles. Great value at this price point.
Would recommend: Yes
1 of 1 found the following review helpful.
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Last updated 2025-11-12 UTC.