Reviews & Ratings for Primary Arms SLx 3x21mm Micro Magnifier Red Dot Sight — 19 reviews — Page 1

With a built-in ranging reticle and clear glass, you can't beat this option. Easy to use and affordable too.

Excellent little 3x magnifier. Love the Pegasus version with the ranging hash marks. Has a smaller eye box than I'd like, but it's easy to adjust shooting position with a proper turkey neck cheek weld.

Couldn’t be happier with my purchase. Quality is great and I plan to use with the flip-to-side mount in front of a glx 1x micro prism optic

Solid magnifier and flip to side base. Magnifier range finder markings are clear and smooth. The flip to side base is solid. As sturdy as my eotech g45.
The magnifier sits behind Holosun Elite 65 MOA Circle 1/3 co- witness used the tallest shim to align the height.
The combination setup is perfect at 100yds really clear.
So good bought a second set.

This thing is nice, pairs well with primary arms SLX 1x micro prism. Cause the eye relief on the micro prism is similar a red dot, almost unlimited on how far you can be…

I purchased this magnifier to pair as a flip to the side option with a primary arms micro prism slx 1x. I have astigmatism and based on reviews I thought that the combination would work better than a red dot combo I used previously. The scope was amazing unfortunately, I was not able to get the magnifier to focus on the reticle of the scope at all following the manufacturer instructions and watching their videos on YouTube as well as others. I thought it was my astigmatism but then my sons couldn’t get it to either and they have 20/20 vision. Probably just a one off defective unit. I ended up returning it. Optics planet was great with their customer service and that was good. I have two other primary arms scopes and I wanted to love it but it didn’t work for me. I think the concept of 1x scope especially the amazing primary arms reticule and magnifier combo is good depending on the planned application but eye sight dependent.

This primary arms 3x micro magnifier seems like it will work. Strange thing is, I had to mount it in front of the primary arms 1x micro prism scope. When it was mounted behind the scope I could not see anything, all blurry. Moved it forward and it works as it should. I'm wondering if anyone else has encountered this strange phenomena. Overall, I'm going to use it and see what I see.

I have not actually used this red dot but when I learned is you DO NOT want to buy the "combo" that includes 29R-MT-PAHF-910033 as the flip up mount. It is NOT the right mount for this magnifier. I didn't realize this until I had both in my hands and tried to put the magnifier on the mount. It does not fit!

Only reason for not giving a full 5 start rating is because magnifier doesn't line up perfectly even with Holosun red-dot. Minor issue. Looks good on my PSA AR build. Other than that beautiful and clear optics.

Bulky but works. Kinda heavy. Will not work well with certain flip to side mounts. It will rub and damage finish on mount. But does the job with some adjusting. For the price I guess it’s good. You get what you pay for