Primary Arms SLx 3X MicroPrism™ Scope - Green Illuminated ACSS Raptor Reticle - 5.56 / .308 - Yard

Manufactured by Primary Arms
MPN: 710037
Manufactured by Primary Arms
32 Reviews

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This Primary Arms MicroPrism is part of the SLx optics line. SLx optics built their reputation for innovation, reliability, and value. All SLx optics undergo rigorous field-testing during development to best serve you in any environment.

The SLx 3x MicroPrism is an all-new advanced optical system that combines the compact, lightweight size of a microdot with the durability and precision of a 3x magnified optic. The SLx 3x MicroPrism offers 13 illumination settings with AutoLive® motion-sensing on/off technology and multiple night vision compatibility options.

Weighing under 8oz, the SLx 3x MicroPrism is smaller and lighter than many red dot sights and features crystal-clear glass with 3x magnification for improved precision at distance. Even in close-quarters, the optic’s wide field-of-view and forgiving eye relief make it easy to snap on target.  

Because the SLx 3x MicroPrism uses an etched reticle with adjustable diopter, the user will always have a clear, crisp reticle image, even if they have severe astigmatism. When set to max illumination, the MicroPrism reticle is fully daylight bright. For low-light, this optic offers 3 different NV-compatible settings, accommodating any ambient light level. Paired with the AutoLive® motion-sensing illumination technology, this optic provides an exceptionally long runtime at any brightness setting. 

This package also includes the new ruggedized mounting system with industry standard mini-prism footprint, guaranteeing reliability and zero retention through heavy use and adverse conditions. Out of the box, this mount can be set for 8 different mounting heights and configurations, ensuring compatibility with any rifle system.


  • Green reticle illumination
  • 13 Illumination settings + 3 NightVision; Highest settings are Daylight Bright
  • AutoLive motion-sensing on/off battery saving technology 
  • Length: 2.95”  Weight: < 7.95 oz.
  • Etched Reticle, perfect answer for astigmatism and works without illumination
  • Wide Field of View (38.0 ft @ 100 yds), excellent for CQB situations
  • 80 MOA W/E Adjustments; .25 MOA Click Value
  • 8 Mounting Height Options (incl. AC & L1/3 heights, see next page for details)
  • Uses One CR2032 Battery (Included)
  • Up to 29,000 Hours on medium setting
  • Industry Standard Mini Prism Mount Footprint
  • Eye Relief: 2.7"
  • Lens Covers also included; ARD option sold separately
  • Lifetime Warranty

The ACSS® Raptor 5.56/.308-YP reticle is part of the patented ACSS Reticle series.

The Advanced Combined Sighting System (ACSS®) is a high-performance reticle solution to the challenges of modern marksmanship, distilling complex mathematics into intuitive holdovers that enhance your speed and precision. Each ACSS reticle is specially designed to outperform in real-world applications, incorporating a mix of tools to deliver instant firing solutions. These tools may include ballistic drop compensation, auto-ranging stadia, wind holds, moving target leads, or an infinitely-precise center chevron.

Optimized for the SLx MicroPrism, the ACSS-Raptor5.56/.308-YP reticle adopts the features of the beloved ACSS Raptor reticle to a prismatic optic design. The brightly illuminated outer horseshoe improves acquisition speed for close-quarters shooting, while the center chevron acts as an infinitely precise aiming point for enhanced accuracy. This reticle also includes auto-ranging ballistic holdovers for 5.56, .308, and similar cartridges in 100-yard increments with included 5-mph and 10-mph crosswind holds.

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Battery TypeCR2032 3V Lithium Coin
BrandPrimary Arms
Click Value1/4 MOA
Eye Relief2.70 in
Field View 10038.00 ft
Focal PlanePrism Scope
ManufacturerPrimary Arms
Mount CompatibilityPrimary Arms MicroPrism, Trijicon Mini-ACOG
Night Vision CompatibleNight Vision Compatible
Optic SeriesSLx
ReticleACSS RAPTOR 5.56 Y
Reticle ColorGreen
Total Elevation Adjustment80 MOA
Total Windage Adjustment80 MOA
Turret FeaturesExposed Turrets, Low Profile, Tool Adjustable
Weight7.95 Oz.
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

32 reviews

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First green Chevron P.A. slx 3x prism


10/5/22 just mounted on rifle, and sight is built like a Tank. However the adjustments on it are Sooooo tight they're impossible to use. It will take time to break in . I did find that the Diopter is all the way tightened down to the right (clockwise) So be careful on adjusting . Once I got it to move ( Counterclockwise) it loosened up to adjust to my eye. If weather holds for the weekend I can get it sighted in. Wife wants one already . Thanks P.A.

Update on new P.A. slx 3x micro prism Green chevron


After mounting my new prism sight it took very few adjustments to zero on etched black Chevron. This is the Best optic I have ever owned . With all the include mount options and features ,you would foolish not to purchase. Best thing since sliced bread!!;

SLX 3x Green

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So far have only sighted it in , but love the light weight of this 3x prism , I shoot with both eyes open and picking up my target with it is easy just like my 1x green dots , but with the advantage of 3x magnification, love the reticle as well

P.A. 3x slx green prism sight

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I think this is by far the Best gun sight on the market. It's got everything, built like a Tank, 3x zoom, green Chevron .it's worth it's weight in gold ...

Decent Scope

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This is a nice little scope. It is very clear. The non-capped adjusters have a very positive and audible click. The green ACSS reticle is amazing and daylight bright if you chose to use illumination during the day. The eye relief about 2.2 inches. It’s a little short and the eye box is not that forgiving, but it is a micro prism. My chief complaint is the short eye relief.

Stellar little optic unit!

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First and foremost . . . Thank you, Primary Arms for affording the community this fantastic optic. Received it yesterday and sighted it in this morning at my local outdoor club. The host is a 10.5" AR-15 pistol. Prior, I was using your MD-ADS for the past 6 years. It's still functioning like new. However, it doest work for these aging eyes anymore.

The chevron on this new SLX 3X micro is very sharp and clear for these aging trifocal wearing eyes. On an open range at 50 yards and in, I simply used the default black reticle without any issues. It was a bright sunny desert day. As such, illumination was not required.

Looking forward to taking it further out, as I get better acquainted with this new optic.

You won't believe this optic


Fitted a fed 3X onto my buddy's rifle and decided that I needed the green illuminated reticle. The optic did not disappoint. Established a zero @ 100 yds using my rendition of the MK262 Mod 1 ammo (77BTHP @ 2750fps from a 20" barrel). Even at 3X, I was able to center the tip of the reticle in a 6" reduced highpower target (SR-1C). I then held the tip of the inverted "V" at the center/bottom of the target. Both groups measured right at MOA and that is about all that this barrel can yield.

Did not shoot beyond 100yds and just wanted to get a solid zero. If the subtends are accurate, I have no doubt that I could stitch an Echo Target with this optic to 500 yards and possibly further. The clarity is def there and the reticle is very crisp. Will give a follow-up on this optic once I am able to shoot it at distance.

Phenomenal Optic SLX 3x Micro-prism

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The SLX 3x Micro-prism is a phenomenal optic at a fantastic price point. I have tested the optic out to 300 yards and I am impressed with its performance. All of my hunting/shooting friends who have looked through it and shot with it have also purchased one. I bought the 5.56/.308 model with the green illuminated reticle and I love it. I live in sunny south Florida and the illumination is definitely daylight bright. I intend on purchasing a few more of these optics after the holidays.

Dave C.

Fresh glass makes my rifle feel like new

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I replaced an LPVO setup I had for years with the SLX 3x MP. It is a third of the weight and makes my 16 inch AR more manageable. Really clear glass, great reticle, and looks pretty cool. I added the anti reflective insert as well. Feels a lot like an ACOG, but a fourth of the cost. I want a 1x now for my other.

It's great!

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Works great, looks great, other companies would charge twice as much for the same quality. Get yourself one now!