Primary Arms SLx 1-6x24mm SFP Rifle Scope Gen III - Illuminated ACSS 5.56/5.45/.308

Manufactured by Primary Arms
SKU: PA1-6X24SFP-ACSS-5.56
MPN: 610017
Manufactured by Primary Arms
95 Reviews

In Stock

Standard orders will ship out 1 business day if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.

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. Click here for details



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

This rifle scope is part of our SLx optics line. SLx optics built our 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 1-6x24 second focal plane scope (Gen III) features our exclusive, patented Advanced Combined Sighting System reticle. Bullet drop compensation, wind holds, moving target leads and range estimation are seamlessly integrated into an easy to use, instinctive sighting system that is very fast from 0-300 yards and very accurate from 300-800 yards. The second focal plane design keeps the reticle the same size at all magnifications for quick acquisition at low power and advanced reticle functionality at 6x maximum power. This Scope is protected by the Primary Arms Lifetime Warranty. If a defect due to materials or workmanship, or even normal wear and tear, has caused your product to malfunction, Primary Arms will either repair or replace your product.

  • Silver-rated by the NTOA!
  • Second Focal Plane ACSS reticle designed for 5.56/5.45/.308
  • Includes manual for zeroing for your caliber
  • Chevron center provides infinitely small aiming point
  • BDC and ranging accurate at highest magnification setting
  • 1-6x total magnification range
  • Red illuminated with 11 brightness settings
  • Includes CR2032 battery
  • Single piece 6063 aluminum construction
  • Water and fog proof
  • More compact than older models
  • Hardcoat anodized matte black
  • Lifetime warranty

We knew our flagship Gen II 1-6x24 would be a tough act to follow, so we worked hard to make incremental but real improvements. The Gen III is 18mm shorter (10.04in long), weighs 1.88 ounces less (16.9 oz. total), and has an additional 10 MOA of internal adjustment compared to the older model. The ACSS® reticle has also been improved, now featuring a chevron center aiming point rather than a dot. 

Partial 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. All lenses are fully multicoated for maximum light transmission and the 6063 aluminum body is Type II hard anodized in matte black.
See More


Battery TypeCR2032 3V Lithium Coin
BrandPrimary Arms
Click Value1/2 MOA
Exit Pupil DiameterLow: 9.00mm / High: 4.00mm
Eye ReliefLow: 3.50 in / High: 3.30 in
Field View 100Low: 110.00 ft / High: 19.30 ft
Focal PlaneSecond Focal Plane
Length10.0 in
Magnification1X - 6X
Night Vision CompatibleNon-Compatible
Objective Diameter24mm
Optic SeriesSLx
ReticleACSS 5.56/5.45/.308
Reticle ColorRed
Reticle TypeBDC
Tube Diameter30mm
Weight16.9 Oz
  • Pew Pew Tactical Gen III ACSS 1-6x Review
  • Full review Gen III 1-6x ACSS by sootch00
  • Hijack86 with Gen III 1-6x ACSS at 300-600 yards
  • TiborasaurusRex best AR-15 DMR scope Gen III 1-6x ACSS
  • CountryMash's Top 3 Best Budget Optics for your AR-15

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

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

95 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews



EXTREMELY IMPRESSED!!! I was hitting 10 inch plates and body silhouettes from 300 all the way to 600 yards ! Out of a Smith and Wesson M and P 15 sport 2 16inch barrel 1:9 twist using 55g american eagle XM193 basic ammo. Hold overs are very reliant and accurate. Super happy with my purchase.


by -

Great scope for the AR platform. Took all of 8 shots to zero at 100 yards. Afterwards it was a joy to use. It's super clear, the eyebox is well sized and the ranging makes first shot hits almost too easy to achieve. Was not able to test past 200 yards, but very much looking forward to it. Primary Arms is an amazing company to do business with.

Best optic for the money


I just went out and sighted in my new AR today with this scope. I really like it, easy to adjust. I had it zeroed in in 3 shots. It's very clear and I love the reticule. I don't think you can find a better optic for the money. I'm planning on buying another one.

Perfect for all skill levels!


Whether you are a master shooter or a beginner with their first carbine, this is the optic for you! I have owned this optic for over a year. I have ran on various rifles and setups, it just flat works. Zero at 100 yards and true it up at 400 and you are set! 55gr to 77gr Mk262. It works! 10/10

1x6 Stike Eagle for sale


If your trying to decide between Primary and Vortex let me save you some time! Hands down this is a better optic. I own both and while you are still trying to find your alignment n get a sight picture on the Vortex Ive already aquired and engaged the target. The eye relief on the PA is far better so much so Ive purchased another PA to replace the Strike Eagle. Im also replaceing the V brand that cost over a grand thats on my Aero P m5 for the PA scope that is same magnification n selling the Vortex. These may be far less expensive but not a cheap knockoff.

This scope competes and excels above many $1000 scopes.

by -

The ACSS reticle takes the best of BDC and range estimation and combines then into a single lens, then combines a precision mark with a quick acquisition semi-circle for close quarters. I tested this scope at the same time I tested a binary trigger. The scope made it easy to recover and stay on target for rapid two shot strings. At close range, just put the semi-circle on center mass and pull the trigger. The chevron also made precision shots easy. I found the glass to be clear and the lower settings on the illuminated reticle to work well in low light situations. I personally think the higher settings on the illumination start to distort and blur the reticle, but that could just be my eyesight since I have astigmatism. The instructions are little confusing but there are a few videos that explain the reticle very well. Overall, I think our troops could benefit from this scope and it would be interesting if it were actually tested it in real combat.

Perfect AR Scope

by -

This scope sets the Standard for a 1-6x scope. The glass is clear and crisp from 1x to 6x. The reticle is easy to see and use. The price point makes this a no brainer decision. Shipping was quick, packaging was great. I’ll definitely be a repeat customer with Primary arms.



WOW shipping was from a fictional movie 2 days I live in florida. WELL DONE STAFF THANK YOU.



Love the ACSS. This scope is perfect for what I wanted. Clear glass

Great optic for astigmatism!


I bought the optic in 2018 during black friday. I picked up the grey wolf color on sale. Fast forward to 10/19/19 I finally went shooting to sight her in. This optic is a godsend for my eyes! The glass is crystal clear and the magnification is great. I was able to put 15 rounds through a quarter size hole while zeroing my rifle. I can no longer use red dots anymore, the dot looks like an exploding star when looking through the optic. Im definitely going to pick up a few more of these scopes.