Primary Arms SLx 1X MicroPrismT ACSS Gemini 9mm
Purpose-built 1x PCC prism with an etched ACSS Gemini 9mm reticle and Aimpoint Micro footprint
- Price
- $280
- Weight
- 5.5 oz
- Brand
- Primary Arms
- Category
- Optics
Featured in
Features
- •Fixed 1x
- •ACSS Gemini 9mm reticle
- •7.5-16 inch 9mm barrel calibration
- •Aimpoint Micro H1/T1 footprint
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Primary Arms SLx 1X MicroPrismT with Red Illuminated ACSS Gemini 9mm Reticle - H1/T1 Footprint
Primary Arms SLx 1x17mm MicroPrismT Prismatic Red Dot Sight w/Red Illuminated ACSS Gemini 9mm Reticle, H1/T1 Footprint, Black, 710083
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90-day low $239.99More PCC guides & articles
Guides
Overview
The Primary Arms SLx 1X MicroPrismT ACSS Gemini 9mm is a fixed 1x prism built around a 9mm PCC reticle instead of a rifle-caliber BDC. Primary Arms calibrates the ACSS Gemini for 9mm carbines with 7.5-16 inch barrels. The etched pattern remains visible without illumination and includes a large horseshoe for close targets, a center chevron, ranging references, and holds to 200 yards under the maker's stated setup assumptions.
The current T-body model uses the Aimpoint Micro H1/T1 footprint and weighs 5.5 ounces. AutoLive motion activation manages the CR2032-powered red illumination, and the 13 settings include three night-vision levels. Primary Arms rates the housing IP67 and includes a 2.26-inch riser in the current package.
The reticle calibration is the important boundary. Barrel length, ammunition velocity, actual sight height, and zero still change impact. The maker's 7.5-16 inch barrel window does not make every hold exact on every 9mm PCC, so the shooter must confirm the reticle against the selected load and mount height.
Key Features
- Etched ACSS Gemini 9mm reticle with close-range horseshoe and 200-yard BDC references
- Fixed 1x magnification with adjustable diopter
- Calibrated by the maker for 9mm PCC barrels from 7.5 to 16 inches
- Aimpoint Micro H1/T1 mounting footprint
- 13 illumination settings, including three night-vision settings
- AutoLive motion-sensing illumination
- IP67-rated housing
- Current package includes a 2.26-inch riser
Pros
- +One of the few current 1x prisms with a reticle designed specifically for 9mm PCCs
- +Etched reticle remains usable if the battery is off
- +Aimpoint Micro footprint opens a broad mount ecosystem
- +5.5-ounce body keeps a PCC compact
Cons
- −BDC references still require confirmation with the actual load, barrel, zero, and sight height
- −Prism eye relief is less forgiving than a reflex sight
- −The current package includes only the tall 2.26-inch riser, despite older low-mount references in the packaging and manual
Detailed Specifications
- Reticle
- ACSS Gemini 9mm (etched, red illuminated)
- Magnification
- 1x (fixed)
- Eye Relief
- 3.6 inches optimal (2-7 inches usable)
- Field of View
- 76.5 ft @ 100 yds
- Adjustment Type
- 1 MOA per click
- Battery Type
- CR2032
- Battery Life
- Up to 29,000 hours
- Waterproof Rating
- IP67
- Length
- 2.48 inches (without lens covers)
- weight
- 5.5 oz
- Mount Type
- Aimpoint Micro H1/T1 footprint; 2.26-inch riser included
- sku
- PA-SLX-1XMP-H-9MM
- manufacturerPartNumber
- 710083
- reticleCalibration
- 9mm PCC, 7.5-16 inch barrels; confirm actual load, zero, and sight height
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