Primary Arms SLx 1-8x24 FFP Rifle Scope - Illuminated ACSS Raptor Reticle - 5.56 / 5.45 / .308

Manufactured by Primary Arms
SKU: PA-SLX8-1-8X24F-RAPTOR-5.56
MPN: 610098
Manufactured by Primary Arms
46 Reviews

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This Primary Arms rifle scope 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 Primary Arms SLx 1-8x24 first focal plane (FFP) rifle scope offers an expansive magnification range with an eight-time zoom ratio in a compact, lightweight, and affordable package. This tough low power variable optic (LPVO) features full red reticle illumination, a quick focus eyepiece, and low profile, finger adjustable turrets topped by the new turret caps. The first focal plane construction allows for a small red-dot style reticle at low magnification for quick close-quarters engagements, without sacrificing the features and accuracy of the popular Advanced Combined Sighting System (ACSS®) reticle system when you bring the magnification up. To get you from 1x to 8x and back, the SLx FFP rifle scope features the moveable and replaceable magnification ring fin. To top it all off they are backing this scope with lifetime warranty!

  • 8x magnification range
  • First focal plane ACSS® Raptor reticle designed for 5.56/5.45/.308 is true at every magnification
  • Excels at close quarters out to mid-range engagements
  • Fully multi-coated lenses
  • Tactile and audible 1/4 MOA click adjustments
  • Low profile capped turrets
  • Water proof and fog proof
  • Moveable and replaceable magnification ring fin
  • Weighs just 17.9 Oz!
  • Lifetime Warranty

The ACSS® Raptor 5.56 first focal plane reticle has been calibrated to be true at every magnification. The reticle's features include automatic ranging out to 600 yards, moving target leads, and a large, fast horse shoe that easily draws your eye to the target. This caliber specific reticle is tuned for 5.56 NATO, 5.45x39mm, and .308 Win. Full red reticle illumination is provided by a single (included) CR2032 battery, and a spare battery is included inside the windage turret cap. A total of 11 settings take the reticle all the way up to daylight bright. At 1x you get a fast reticle optimized for engaging targets in close quarters. At 8x you have a precision reticle that will let you easily reach out to 600 yards!

Whether you're hunting through the brush or looking to crush the competition, the SLx first focal plane low power variable rifle scope with ACSS® Raptor reticle is an excellent choice. The wide 1-8x magnification range offers the perfect combination of close quarters engagement speed with mid-range precision, ensuring no target is out of your reach. Lightweight at just 17.9 ounces and backed by the 100% in-house inspection and lifetime warranty, it's the perfect option for your favorite carbine.
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Battery TypeCR2032 3V Lithium Coin
BrandPrimary Arms
Click Value1/4 MOA
Exit Pupil DiameterLow: 9.00 mm / High: 3.00 mm
Eye ReliefLow: 3.20 in / High: 3.30 in
Field View 100Low: 105.00 ft / High: 14.30 ft
Focal PlaneFirst Focal Plane
Magnification1X - 8X
Mount Compatibility30mm
Night Vision CompatibleNight Vision Compatible
Objective Diameter24mm
Optic SeriesSLx
ReticleACSS RAPTOR 5.56/5.45/.308
Reticle ColorRed
Reticle TypeBDC
Tube Diameter30mm
Turret FeaturesCapped Turrets, Low Profile, Finger Adjustable
Weight17.9 Oz.
  • Dimitri Discusses the 1-8x FFP SLX with ACSS Raptor Reticle
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

46 reviews


Best FFP 1-8x out there


Easily had this zeroed at 100 in 5 shots. Moved it out to 548 yards on a human size steel target and was consistently hitting using my zero for 100 yards by using the amazing ACSS reticle just below the 500 yard mark. Insane how good this thing is. Only complaint is the picture quality past 300 but come on at this price you shouldn't hesitate.



great bang for the buck mounted on my ar10 .308 200 rounds with it so far no issues at all i have nothing but great things to say for this optic. highly recommend when you dont want to break the bank on an lpvo.

Made in the PRC.


I am giving this scope 5 stars before installing it because it would be unfair to give it a low rating solely on the basis of the regime that made it. George was incorrectly informed, the scope I received was made in the PRC, not Japan. This fact is proudly displayed on the box, and it is etched into the bottom of the scope ( no peel-offer sticker here, so you can’t hide your shame.)

Best scope in this price range hands down.


This thing is boringly accurate. Sub MOA at 100 yards no problem. Zeroed quickly and then it’s just plain fun to shoot.

I have it’s cousin 1-6x24 SFF mounted on another rifle and love it. So I already has respect for the brand.

PA customer service is legendary. And I’m a witness to that. With a lifetime warranty and the versatility of this finely made optic what is the risk. Once you try one you’re hooked.

Just a 1st class scope


Glass is extremely, fails are precise and audible tactile clicks.
It is so accurate it’s boring to shoot. Have it mounted on a customized Savage Recon with Gieselle two stag trigger with .223 Wilde barrel.

This scope is sub moa at 100 yards no problem.

Looks great easy to mount


Just got this scope yesterday mounted it today paired with an American Defense Recon QD mount looks great, this is the first FFP I have owned. Sighting in this weekend. Shipping was fast once in stock. Customer service was great, had to verify veteran status. Wish this review would let me post a pic, because it looks awesome.

Great optic


X1 as a red dot is just like a eotech and x8 us super crisp zoom. In-between is everything you want.

Great for 100-600 yds, but definitely not daylight bright


I just bought this scope. First off, I'm really loving the reticle. Got it sighted in with IMI Razorcore and was easily making fast and consistent hits on steel from 300-550 yds. Definitely easier than dialing in dope for your 5.56 AR. It is definitely not daylight bright, though. The 1x is definitely not true 1 power, and in the Arizona sun I can't see the illumination *at all* on 1x. Shooting in the day at 1x is definitely nothing like a red dot. All in all, though, I think the excellent medium range capability makes up for the lacking 1x CQB capability. This set up definitely would benefit from a micro red dot piggyback on a Burris PEPR or with an offset red dot mount.

Great Value

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I’m a beginner when it comes to scopes so I didn’t want to spend big $$$ quite yet. I did a lot of research before buying this and everyone seems to agree that it competes with some of the higher end options despite its low price. The reticle really sets it apart- not too busy and stupid simple to use. The illumination was turned on when I took it out of the box and the battery was dead, but it does come with a spare! Not a big deal but I almost thought I got a dud. Anyway, I’m really happy with it. Definitely won’t need to upgrade any time soon.

Shipping Problems

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Well, this didn't start out well with the shipping I selected it arrived late. The scope once received is great quality, crystal clear I have only put 50 rounds through the riffle with the scope on it. It is on a keltec RDB and I will see how long this lasts.