1. Home
  2. Rifle Scopes
  3. Scopes With ACSS

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

Manufactured by Primary Arms
MPN: 710036
Manufactured by Primary Arms
43 Reviews

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

Receive FREE shipping on your entire order when you purchase this item.
For individual Officer, First Responder, and Military pricing please make sure you are logged in. for details



After rigorous field testing, this optic has been given a silver-tier rating by the National Tactical Officers Association.

This Primary Arms MicroPrism is part of the SLx optics line. SLx optics have built a 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.


  • 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.

See More


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 ColorRed
Total Elevation Adjustment80 MOA
Total Windage Adjustment80 MOA
Turret FeaturesExposed Turrets, Low Profile, Tool Adjustable
Weight7.95 Oz.
  • Product Showcase: 3X SLx MicroPrism
  • Primary Arms SLx 3x MicroPrism ACSS Raptor ~ Rex Review
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 www.P65Warnings.ca.gov.

Ratings & Reviews

43 reviews



by -

My favorite optic and reticle! This optic makes it so easy to hit targets its like cheating. Excellent features for the price. It is on my "go to" Aero build rifle. I am already wanting to pick up another one in 7.62x39.

Great compact scope

by -

I finally got out to the range to try out the 3X SLX Microprism scope with the ACSS reticle. The scope is wedded to a ' What Would Stoner Do,' light weight 5.56 set up. The reticle, once focused, is crisp and easy to use and I was able to shoot a couple of 1 MOA groups at 100yds. It is daylight bright but I prefer the unlit etched black reticle.

The only complaint I had is the focus ring was really tightened to the point I have to use a small web wrench to loosen the ring to get the scope to focus. Would I buy it again- I have two more on order.

Nice set up for an AR style weapon


Slick small and light weight. Not great past a hundred yards. Sighted in today using a 300 blackout with 10” upper. I will be using this for deer hunting in timber were a short barrel rifle works best.

Great Optic

by -

Received this about a week ago. Within a few days I had to get some time behind it. It is a great optic. The glass is clear, the reticle is exactly what I was after, the daylight bright works, seems very solid.

The reasons for a 4 star are as follows: The light intensity know is a little mushy. It works well and has defined levels but I cant really call them clicks. Almost feels like a roller if that makes sense. The second, and probably biggest reason for 4 stars, reason is the mount. Now the options, how it mounts, how solid the mount is, and the quality are great. The thing it is missing is it should be QD and the reason is because you habe to set it up over your rear sight to get the proper eye relief with comfortable head placement. For the money maybe this shouldn't have been expected as I think it is a great deal overall.

Interesting. Great value for money.


For $350 and 8oz this thing is nuts. On a lightweight build, nothing is going to be as capable for the weight-- plus the convenience of not having a magnifier. There's a case to size up to the PA 5x for a better image, considerably more range, and a place to mount a dot up top. For me, this is perfectly good for my potential use cases.

Nearly perfect


There is so much that I like about this optic. It has replaced an Eotech and magnifier on my duty patrol rifle. It's a significant weight savings over the Eotech alone. It's eye relief is much longer than an Trijicon ACOG (my old Marine Corps optic that I hated) and much more forgiving. I took it out to 500 and was able to consistently engage a 1/2 IPSC sized plate. The BDC is dead on for my 14.5" with 55 grain ammo. My only suggestion would be a cross or stadia line that is place 34 MOA below the tip of the chevron for close in zero/offset. It would be damn near the perfect duty optic with that. I'm hesitant to give it a full five star at the moment, I would need a good six months of it bouncing around in a patrol car and retaining zero. Would like to get my whole department outfitted with these.

Better than an ACOG for a third the price.


I used the ACOG on both deployments and loved everything about it except the eye relief. This thing has better eye relief, feels just as rugged, and is much lighter and smaller for a third of the price. The ACSS raptor reticle is also a huge upgrade over the ACOG for CQB situations. Absolutely love my purchase and it was well worth the wait. If you're a fan of the ACOG then I guarantee you will not be disappointed with this purchase.

Love it


Perfect addition to my AR-308 to shed some weight.
The 3X is a perfect amount of magnification for my short range hunting needs

Eye relief is quite short


Pros: lightweight, compact, great glass, huge FOV, feels solid and well-made

Cons: the eye relief and eyebox is very tight. I understand that to have FOV, you have to give up eye relief. However this scope’s eye relief makes it difficult to work on AK mounts. I purchased the Midwest Industries Mini ACOG mount with this scope. It turns out I will need to find a new mounting solution. If you’re mounting it to an AK, you’ll meed the eyepiece about where the takedown button is located. That’s how close your eye needs to be.

My favorite optic

by -

I was a little worried the retical marking may be too small but it is very easy to see and use. I liked the variation in mounting options so I could get the height and fore and aft just right. Got an AK to get an optic for and this is going on it as well.