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Primary Arms SLx Full Size 3X Red Dot Sight Magnifier 510012

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Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
1 of 1 videos
Primary Arms - SLX 3x MFS
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
1 of 5 images
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
2 of 5 images
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
3 of 5 images
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
4 of 5 images
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012
5 of 5 images
Primary Arms SLx 3x Magnifier - Full Size, Black, 510012

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Questions & Answers
Will this work with SLX 1x Micro prism? Expert Answer

Yes, the Primary Arms 3X Magnifier will be compatible with the Primary Arms SLx 1x Micro-Prism.

by Ethan, Gear Expert, February 17, 2023
Is this comparable with the eotech? Expert Answer

Yes. The Primary Arms SLx Full Size 3X Magnifier Scope will function as intended when used in conjunction with an Eotech Holographic Sight.

by Ethan, Gear Expert, November 28, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Works Great, with a Gen II PA Cyclops Prism by bafflingbs, March 12, 2024
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 P...
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2/2 found this helpful
Helpful Positive Review
Another great product from PA by B, Verified Owner, 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.
1/1 found this helpful
Most Recent Reviews
Wasted time and money by Phillip Leon, Verified Owner, 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.
0/5 found this helpful
Most Recent Reviews
Great Magnifer by Pat Brewer, Verified Owner, 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!
Most Recent Reviews
Magnifier for a Great price! by Connor Shaw, Verified Owner, 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...
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Read All 5 Reviews

Product Discontinued by Manufacturer

Primary Arms SLx Full Size 3X Red Dot Sight Magnifier has been discontinued by Primary Arms and is no longer available. Our product experts have helped us select these available replacements below.

Product Info for Primary Arms SLx Full Size 3X Red Dot Sight Magnifier

The SLx FS 3x Magnifier supplements your red dot or 1x prism with added magnification when engaging targets at medium to long distance. This magnifier is part of our SLx optics line. SLx optics built our reputation for innovation, reliability and value. All SLx optics undergo rigorous field-testing during development to best serve you in any environment.image

Compatible with the most popular mounts on the market, the SLx FS 3x Magnifier is a versatile addition to any close-quarters optics setup, and the enhanced glass quality and wide field-of-view ensure that the user can always get a clear view of their target. Though the SLx FS 3x Magnifier weighs a mere 8.45oz, its durable construction protects it against the repeated shocks and impacts of duty use.

As with all other Primary Arms Optics products, this magnifier comes backed with a limited lifetime warranty and commitment to customer satisfaction.

Package Contents:

  • Primary Arms SLx Full Size 3X Red Dot Sight Magnifier
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Last updated 2026-07-01 UTC.