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Questions & Answers
I have a 10.5” barrel 300 blackout pistol, how accurate will the distance markings be with the shorter barrel as I’m sure they are based on 16”? Expert Answer

There is no way to provide an "accuracy" as it depends on a many factors. The reticle is set up for .300 Blackout and has information in the owners manual that will help with different barrel lengths and different ammo types, but the final verification of hold overs is up to the end user as it depends on a multitude of factors.

by Armando R., Gear Expert, February 24, 2021
What red dot sight will fit on the picatinny accessory rail? Expert Answer

The Vortex OPMOD Viper 1x24mm 6 MOA Red Dot Sight may fit but not sure if it will sit highest enough to get a clear picture with the adjustment knob.

by Hunter, Gear Expert, January 14, 2022
Customer Reviews
Helpful Positive Review
Perfect SHTF Optic by Howitzer Hill, October 15, 2021
Marine approved. Very accurate. ACSS reticule is made for Combat. Built tough and for the budget I couldn’t recommend it enough. I have it on an M&P15 Sport 2 and I couldn’t be happier. Sub MOA at 100 yards with Federal Premium 62gr LAP “green tip” ...
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31/33 found this helpful
Helpful Positive Review
Great Optic by Andree88, Verified Owner, March 11, 2025
Quality optic backed by a lifetime guarantee. Great reticle with very useful ranging, wind and lead estimates. Very crisp and clear. Easy to adjust. Not really anything bad to say. Fyi the manual only lists the torque specs for the mini 1913 rail on...
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3/3 found this helpful
Helpful Positive Review
It’s my second one! by Litneon, August 6, 2022
I bought my second 3x prism recently, this time with the .300 AAC reticle. Took it to the range on my Sig Virtus and didn’t have to touch the adjustments at all. It was dialed in right out of the box. I know that’s probably just random, but it top...
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4/4 found this helpful
Helpful Positive Review
very quality optic by Airman, Verified Owner, January 3, 2024
Gone are the days when acog was the king of low power mag optics despite there being only a couple of usable ones out of a mountain of production models. This optic, in many ways, has met (and exceeded) expectations where trijicon has unfortunately f...
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1/1 found this helpful
Helpful Positive Review
1 year 1k+ round review by William R, Verified Owner, August 22, 2023
I wanted to get 1 optic to be able to do everything. I am not disappointed. 3x is low enough that with just a bit of practice I can run 25 yard target transition drills with ease. I've rang 8" steel at 300. It rides in my truck, goes hunting, hiking,...
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3/3 found this helpful
Helpful Positive Review
Great scope by Bullet454, February 26, 2021
So far I absolutely love this scope. I went with the 3x because I was afraid the 5x might blur close targets. The 3x does not works flawlessly couldn’t be more happy so far have not shot it as much as I would like but 300 blackout ammo is like hens t...
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3/3 found this helpful
Read All 58 Reviews

Deal 1: 14% OFF Red Dot Sights

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Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter coupon code for savings on that select model! Limited time only. Cannot be combined with other promotions or offers.
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Product Info for Primary Arms SLx 3x32 Compact Prism Red Dot Sight

After rigorous field testing, this optic has been given a Recommended rating by the National Tactical Officers Association.image

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 Gen III 3X Compact Prism Scope with the improved ACSS-5.56-CQB-M2 reticle is the lightweight, do-everything scope you've been looking for. The low 3X magnification and bright illuminated reticle allow for fast, both-eyes-open shooting at close range, while the ACSS CQB reticle allows for easy hits on targets out to an impressive 600 yards. The Gen III scope has been equipped with our next generation ruggedized mounts to provide flexible mounting options with incredible clamping power.

The heart of our tough Gen III 3X Prism Scope is the improved ACSS 5.56 CQB-M2 reticle that combines ranging, wind leads, moving target leads, and ballistic drop compensation out to 600 yards. The outer horseshoe of the glass etched reticle is used for close quarters engagement, simply place the generous semi-circle on the target and run with it! Each side of the horseshoe also has our integrated ranging system. Place the bottom of the target on the bottom rung and range up. If you know your targets are roughly 18 inches wide, they can be ranged on the side Auto Range system, or directly on the BDC hold overs! Two dots on either side of the precision chevron offer a moving target lead moving with an average speed of 8.6 MPH. Each step of the BDC system includes a 5 MPH wind hold, drastically improving first hit probability at any range. As an added bonus, the glass etched reticle does not require batteries or illumination, but 11 brightness settings (including daylight bright) allow for fast acquisition in close quarters, or enhanced visibility in fading light, powered by a common CR2032 battery!

The SLx 3X Gen III has even greater strength and flexibility than ever before with our next generation ruggedized mounting system. Weve upgraded everything about the mount from materials and finish to the design to create a mount that will not just clamp securely to your rail, but stand up the rigors of real-world use. Integrated recoil lugs help lock your mount in place against the heaviest recoil while large diameter crossbolts give you significantly improved clamping power and will hold up to significant torque. The included riser is the perfect height for AR-15s and AR-10s, but can be easily removed for carry handle or AK use as well.

WARNING: California`s Proposition 65

Specifications for Primary Arms SLx 3x32 Compact Prism Red Dot Sight:

Manufacturer: Primary Arms
Color: Black
Fabric/Material: Aluminum
Magnification: 3 x
Objective Lens Diameter: 32 mm
Illumination Type: LED
Illumination Color: Red
Brightness Settings: 11
Eye Relief: 2.72 - 2.92 in
Adjustment Type: MOA
Adjustment Click Value: 0.25 MOA
Emitter Type: Enclosed
Field of View, Linear: 31.5 ft at 100 ft, 31.5 ft at 100 yds
Battery Type: CR2032
Battery Quantity: 1
Water Resistance Level: Waterproof
Shockproof: Yes
Fogproof: Yes
Gun Make: AR Platform
Gun Model: AR-15
Length: 2.95 in
Weight: 18.4 oz
Condition: New
Red Dot Sights-Footprint: Not Applicable
Mount Type: Picatinny
Attachment Type: Picatinny

Features of Primary Arms 3x32 Compact Prism Red Dot Sight

  • New Ruggedized Mount provides exceptional clamping power
  • Includes AR-height riser
  • ACSS 5.56 CQB-M2 chevron reticle has BDC and ranging out to 600 yards with 5.56 NATO, .223 Remington, 5.45x39mm, and .308 Winchester
  • Fully illuminated reticle is visible even in bright daylight
  • Removable M1913 picatinny top rail for accessories or piggy-backed red dot sights
  • Generous 10.3mm exit pupil allows for a bright and forgiving eye box
  • 31.5ft field of view at 100 yards provides easier tracking of mobile targets
  • 2.7'' - 3.0'' of eye relief
  • 1/4 MOA turret clicks are tactile and audible for easy zeroing
  • Tough prism scope is waterproof, fog resistant, and shockproof
  • Durable hardcoat anodized finish
  • Compatible with standard carry handle mounts
  • Protected by a lifetime warranty

Package Contents:

  • Primary Arms 3x32 Compact Prism Red Dot Sight

Primary Arms SLx 3x32 Compact Prism Red Dot Sight Orderable Models

List of Orderable Models

  • Primary Arms SLx Series Prism Red Dot Sight, 3x, ACSS CQB 300BO/7.62x39 Illuminated Reticle, Black, 710024 , MPN: 710024 , UPC: 818500014911 , Code: 29R-PRD-PA32G-710024
  • Primary Arms SLx Series Prism Red Dot Sight, 3x, ACSS 5.56 CQB M2 GENII Illuminated Reticle, Black, 710026 , MPN: 710026 , UPC: 818500014898 , Code: 29R-PRD-PA32G-710026

Primary Arms SLx 3x32 Compact Prism Red Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • Primary Arms SLx 3x32 Gen III Compact Prism Scope, ACSS-5.56-CQB-M2, Flat Dark Earth, 710027 , MPN: 710027 , UPC: 818500014904 , Code: 29R-PRD-PA32G-710027
  • Primary Arms SLx 3x32 Gen III Compact Prism Scope, ACSS 7.62x39 / 300BLK CQB Reticle, Flat Dark Earth, 710025 , MPN: 710025 , UPC: 818500014928 , Code: 29R-PRD-PA32G-710025
  • DEMO, Primary Arms 3x32 Gen III SLX 3 Compact Prism Scope, ACSS-5.56-CQB-M2, Black, 710026 , MPN: 710026-DEMO , Code: 29R-PRD-PA32G-710026-DEMO
  • DEMO, Primary Arms SLX 3 Gen III 3X Compact Prism Scope, Illuminated ACSS, CQB Reticle, Black, 710024 , MPN: 710024-DEMO , Code: 29R-PRD-PA32G-710024-DEMO
  • Open Box, Dealer Demo, Primary Arms 3x32 Gen III SLX 3 Compact Prism Scope, ACSS-5.56-CQB-M2, Black, 710026 , MPN: 710026-DMO , Code: 29R-PRD-PA32G-710026-DMO
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