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



Will this work for 458 SOCOM?

Silver Line 1-6x

by -

I do not have this scope in my possession as of right now due to having to send it back to the illumination not working. However before sending it back, I did get the opportunity to looks through it at different distances and I have to say the glass is extremely clear! The LVPO is also light weight and it also has great ergonomics and the variable ring is easy to manipulate, as well as the illumination knob works well. It also has an extra storage for an extra battery in the windage cap. Overall would recommend due to the all the features and clear glass, as well as the customer service in getting me an RMA and getting my scope fixed or a replacement under warranty.

Works very well

by -

This is a pretty decent optic for the price and intended use. I cannot complain at all, after zeroing it I had no troubles hitting 12" steel plates from various ranges, 100 to 500 yards using the reticle. A friend was with me who had never shot past 100 and he hit all the plates first shot. It's easy to use and inexpensive. A negative for is the large horseshoe - it seems needlessly large and is - for me - distracting. It's not enough negative to be worth loosing a star over, thats for sure.

Must Have

by -

If you’re looking for a scope this is it! You will definitely get your moneys worth! This is mounted on my 16” 5.56 carbine and it is perfect! Eye relief is amazing, reticle is bright and clear. You will not regret it.

Great scope for the value

by -

While building my first AR15 I decided to mount this scope instead of a red dot. Very happy with my purchase

Old School Trigger Puller

by -

I'm an old school shooter, this is the first time using optics on a my general rifle. It definitely enhances the experience in quick target i.d.

Clear, no fuzziness

by -

Good scope for the money. the view is crisp, and clear.

Good Glass


Super easy to zero, and has held zero through several hundred rounds so far.
<br>Glass appears clear to the edges.
<br>Reticle is sharp and easy to acquire.
<br>Illumination levels are good, as is the ability to turn it off between two settings.

Holy crap

by -

Have not been able to use the scope yet, but as soon as I hit the buy now button for the scope it was at my door. This is the second scope from PA . Thanks!!!

Great low-priced solution


I put this scope on an AR-15 I built and I'm very happy. I wanted a decent quality scope for shooting medium distance and I didn't want to spend more than $300. This scope was consistently well-reviewed in that category and my experience is well-aligned with the reviews. The scope is well-built, well-engineered, and highly accurate. After sighting in, I could easily group 3/4" at 100 yards. The reticle is super bright and easy to pick up and there's a nice variety of brightness for the illumination. I'm very happy with the purchase. Personally, I would not want to shoot at more than 100 yards with this scope, for the 300 yards advertised would be very fuzzy, at least with my eyes.