Primary Arms SLx 1x Prism – Gemini 9mm ACSS


  • Small, Light, and Tough Microprism
  • 9mm Gemini ACSS Illuminated BDC Reticle
  • Unique Optical Characteristics

Primary Arms SLx 1x Prism – Gemini 9mm ACSS Product Details

Wishing somebody would make a high quality optic with a 9mm BDC reticle for your Pistol Caliber Carbine? The Primary Arms team has made it happen with this compact, lightweight, and tough 1x microprism. About the same size and weight as rifle spec red dot optics, at close ranges the 1x prism is nearly as fast to acquire in a wide variety of shooting positions. The illuminated etched reticle that is always sharp even if your eyes have astigmatism, and gives you holdovers to stretch that 9mm all the way out to 200 yards. No other etched reticle optic on the market equals this prism’s usable eye relief range– your eye can be anywhere from 2″ to 6″ behind the optic and still get a good sight picture. The SLx 1x is also the only prism scope on the market which can be easily combined with a 3x flip-to-side magnifier– yes, it actually works!– making those 200 yard shots much more reliable and repeatable.


  • 9mm ACSS Gemini Reticle
  • Up to 45,000 Hours Battery Life (Medium Setting)
  • Weight: 5.5 ounces
  • 13 Brightness Settings: 10 Daylight & 3 NV Compatible
  • Useable Eye Relief Range: 2″ to 6″ (3.6″ for optimum field of view)
  • AutoLive Motion Sensing Illumination
  • Convenient Tray Battery Compartment allows CR2032 battery to be changed without removing the optic from the firearm
  • Backed by Primary Arms Lifetime Warranty
  • Included mounting system offers 8 different mounting configurations out of the box



  • Red Reticle
  • Green Reticle

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