Primary Arms SLx 3X Micro Magnifier w/ ACSS Pegasus Ranging Reticle

Manufactured by Primary Arms
MPN: 510011
Manufactured by Primary Arms
1 Review

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The SLx 3x MicroMagnifier with ACSS Pegasus reticle is an exciting approach at optical magnifiers, combining high-clarity 3x magnification with a miniaturized body and a built-in ranging reticle. This new optic is part of Primary Arms’ SLx line. SLx optics built Primary Arms Optics’ reputation for innovation, reliability, and value. All SLx optics undergo rigorous field-testing during development to best serve users in any environment.

Note: Pictured with ACSS, 2 MOA dot, or EOTECH reticle

  • ACSS Pegasus ranging reticle
  • 3x Magnification
  • 21mm Objective lens diameter
  • 7.0mm Exit pupil
  • 5.3 ounces
  • Compact design

Weighing only 5.3 oz, the SLx 3x MicroMagnifier is a miniaturized, lightweight magnifier that extends the effective range of a red dot sight or 1x prism scope. The SLx 3x MicroMagnifier features an innovative ‘micro-sized’ design that reduces its footprint compared to traditional magnifiers. This makes it ideal for close-quarters carbines, where agility, ergonomics, and handling speed are paramount.

The SLx 3x MicroMagnifier is also the first magnifier with an option for ACSS Pegasus, a specialized ranging tool designed specifically for optic magnifiers. While most magnifiers simply magnify the primary optic’s reticle, the ACSS Pegasus adds an auto ranging ladder to the system, allowing marksmen to range and engage their targets more effectively. The low-profile offset design integrates seamlessly with your optic’s existing reticle, and the intuitive layout makes it easy to derive precise range estimates in seconds.
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BrandPrimary Arms
Exit Pupil Diameter7.0 mm
Eye Relief2.40 in
Field View 10035.2 ft
ManufacturerPrimary Arms
Weight5.3 Oz
  • Onboard Passive Ranging - PA SLx 3X Micro Magnifier with ACSS Pegasus ~ Rex Reviews
  • Primary Arms Pegasus Magnifier
  • Primary Arms 3X Magnifier Pegasus Reticle Review

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

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The real deal


This thing is amazing. I use this with my EXPS3-4 with the BDC. Before, I never had a way to range targets. Eye relief, construction, glass quality design are all superb. Bought this with the new SLx Flip-To-Side Magnifier Mount. Stop wasting your time, and buy it all ready. You wont regret it.