Battle Of The PA 1X Prisms - SLx v GLx

Published on April 27, 2025
Duration: 13:07

This video provides a detailed comparison between the Primary Arms SLx 1X Prism and the newer GLX 1X Prism. While the GLX offers incremental improvements like a redesigned illumination control and slightly better glass quality with a magnifier, the speaker concludes it's not a significant upgrade for existing SLx owners. Both optics feature the ACSS Cyclops reticle and are daylight bright, with the GLX offering auto-shutoff for battery conservation.

Quick Summary

The Primary Arms GLX 1X Prism offers incremental upgrades over the SLx 1X Prism, including a redesigned push-button illumination control and slightly improved glass quality with magnifiers. While it features auto-shutoff for battery conservation, the overall improvements are considered minor, making it a 'version 2.5' rather than a revolutionary upgrade.

Chapters

  1. 00:00Introduction: SLx vs GLX Prism
  2. 01:03Profile Size and Weight Differences
  3. 01:35Mounting Options and Co-Witness
  4. 02:15Glass Quality: SLx vs GLX
  5. 03:15Illumination Control Redesign
  6. 04:18Reticle Brightness and NV Support
  7. 05:08Adjustment Turrets and Controls
  8. 05:56Illumination Control: Push Buttons vs Knob
  9. 06:30Auto Live Functionality and Battery Life
  10. 07:05Diopter Adjustment with Magnifier
  11. 08:03In-Field Use: ACSS Cyclops Reticle
  12. 09:14Magnifier Use with ACSS Reticle
  13. 10:07Live Fire Testing and Holds
  14. 11:30Range Stadia Feature
  15. 11:53Final Verdict: Is it Worth the Upgrade?

Frequently Asked Questions

What are the main differences between the Primary Arms SLx 1X Prism and the GLX 1X Prism?

The GLX 1X Prism is slightly longer and heavier, features a redesigned push-button illumination control, and offers marginally better glass quality when used with a magnifier. The GLX also includes an auto-shutoff feature for battery conservation.

Is the Primary Arms GLX 1X Prism a significant upgrade over the SLx 1X Prism?

According to the reviewer, the GLX 1X Prism offers incremental improvements, making it more of a 'version 2.5' compared to the SLx's 'version 2.0'. For existing SLx owners, the changes are generally not considered substantial enough to warrant an immediate upgrade.

How does the ACSS Cyclops reticle perform on the Primary Arms GLX 1X Prism?

The ACSS Cyclops reticle is daylight bright and effective for fast target acquisition. At 1x, the chevron is precise enough for headshots, and the reticle provides holds for distances up to 400 yards when used with a magnifier, though it lacks traditional BDC lines.

What are the advantages of the GLX 1X Prism's redesigned illumination control?

The GLX's push-button illumination control is flatter and less prone to snagging than the SLX's rotary knob. This design contributes to a more streamlined profile on the rifle, making it feel more integrated.

Can the Primary Arms GLX 1X Prism be used with night vision devices?

Yes, the GLX 1X Prism supports night vision with dedicated settings. These NV settings are accessed by cycling through the brightness levels to the lowest three positions, though direct access is not available without scrolling through the brighter settings.

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