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
88 Reviews

In Stock

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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.
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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
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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

88 reviews

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These rock


So far a great scope. The BDC is combat accurate out to at least the 600 yards that I have available with multiple bullet weights and ammo brands. Wish I had something like this in the sandbox. The only thing to still be determined is the longterm ruggedness and durability

Got Your Back !


Bought scope, had an issue. But the return fokes were super great ! Fast working with me. No charge to send back. Kept me informed every step of the way. I had it back to me fixed, in Two weeks ! Works great ! So , IF you had an issue you can rest easy knowing they have your back ! YES I would buy it again ! Never had anyone as nice as they were ,and care about the customer.



<br>-holy bright reticle
<br>-not that heavy
<br>-looks good
<br>-reticle is super easy to use
<br>-decent clicks on turrets
<br>-spare batt in cap!
<br>-flip caps are actually decent
<br>-30mm tube
<br>-manual is great
<br>-i can see my 1/2" circles @100yds clearly
<br>-no off btn ill settings, unless u find the spot
<br>-glass isnt the clearest, edge to edge.
<br>-the china mfg thing
<br>Its an optic for shooters, Not glass snobs. Prolly my lowest quality glass for edge clarity that ive had in awhile, BUT, its functional and i love it. And i am returning my Accupower and keeping this one :)
<br>Well done, PA

Nice Optic


I finally snuck out to the range to zero my new PA scope today. 25 yd lane. POA 1.5" high. Sub moa on the dot. On a MI QD mount, still zeroed after mount reset. And the reticle on #9 is crisp. Best of all Primary Arms has the best customer service. Thank you PA!

Just Got It Today and Love It!


Today I received my scope, it is awesome looking, feeling, and I cannot wait to get it on my gun. Thank you guys for keeping up with our demand, and thank you for hiring United States Veterans!

Best reticle in the world


Excellent image quality and the best reticle in the world! The El and windage adjustments are precise, easily felt clicks and right on the money. Zeroed in short time and seems to hold. Great value.


by -

Was pleased with the same scope earlier purchased for the 300BO. I was originally looking for a more expensive scope. For the money I got two 1-6x scopes instead. Excellent value and super fast shipping.

Return to Sender

by -

After inspection of the scope upon its arrival, I found that it was made in the country of China by the People's Republic of China. I have never owned a weapon not made in the USA nor will I ever knowingly buy a part or otherwise that is made in a communist country. if you are one that does not have an affinity for things made in the USA, this scope is decent and will do the job.

How to?


Been pretty good so far.... quick question is how torrset to factory zero?? If anybody can answer that would be a great help?
<br>Reason i’ll be putting it on a different rifle.

Great scope


Scope exceeded expectations at first glance. I haven’t shot it yet but that will be tomorrow hopefully. Clarity is amazing and love the ACSS reticle. Would not recommend this scope though. If I had to do it over again, I would get the 1-8FFP. Also sad at the lack of a sticker. I can very much live with those complaints though. Keep up the good work PA.