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Solid red dot - Primary Arms Classic Series 21mm Micro Reflex Sight with Autolive, 3 MOA Red Dot

by Andrew Wheeler, from KY, United States Written on November 14, 2025
Review for Primary Arms Classic Series 21mm Micro Reflex Sight with Autolive, 3 MOA Red Dot
Primary Arms Classic Series 21mm Micro Reflex Sight with Autolive, 3 MOA Red Dot
Primary Arms Classic Series 21mm Micro Reflex Sight with Autolive, 3 MOA Red Dot
$172.99 $149.99 Save 13%
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Andrew Wheeler's Review of Primary Arms Classic Series 21mm Micro Reflex Sight with Autolive, 3 MOA Red Dot

Looks awesome on my 43x and holds zero very well. Turret adjustments are a pain in the butt since it uses a particularly small Allen wrench. Only issue I've had with it is the seemingly random deactivation and lack of shake awake capability.
Pros:
  • Looks great
  • solid construction
  • Crisp Dot
  • nice viewing window
Cons:
  • No shake awake
  • turret adjustment screws
Best Used for:
  • anything you need a low profile, simple pistol dot for a reasonable price
Would Recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-15 UTC.