Primary Arms SLx 2.5 Compact 2.5x32 Prism Scope - ACSS-CQB-M1

Manufactured by Primary Arms
MPN: 710003
Manufactured by Primary Arms
89 Reviews

In Stock

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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 2.5X Compact Prism Scope with ACSS CQB-M1 reticle is the lightweight, do-everything scope you've been looking for. The low 2.5X magnification and bright illuminated reticle allow for fast, both-eyes-open shooting at close range, while the ACSS CQB-M1 reticle allows for easy hits on targets out to an impressive 600 yards. Whether you're looking for a new scope for competition, hunting, or plinking, why look any further?

  • ACSS 5.56 CQB-M1 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
  • Optional M1913 Picatinny top rail for piggy-backed red dot sights
  • Generous 10.16mm exit pupil allows for a bright sight picture and forgiving eye box
  • 37.5ft field of view at 100 yards provides easier tracking of mobile targets
  • 2.7" of eye relief
  • 1/2 MOA turret clicks are tactile and audible for easy zeroing
  • Tough prism scope is waterproof, fog resistant, and shockproof
  • Durable Type II hardcoat anodized black finish
  • Compatible with standard AR15 carry handle mounts
  • Protected by a lifetime warranty

The heart of our tough 2.5X Prism Scope is the ACSS 5.56 CQB-M1 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 inner horseshoe 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 PAC2.5X offers mounting flexibility to suit your needs. The included 1913 MIL-STD Picatinny thumbscrew mount can be removed and replaced with any mount that accepts AR-15 carry handle-type optics, or simply so you can mount the 2.5x Prism Scope directly to an AR-15 style carry handle. Optionally, shooters can add an M1913 picatinny rail to the top of the optic to piggyback a red dot back up sight. The PAC2.5X offers the perfect amount of magnification to balance close quarters speed with hits at medium range, in a flexible and durable package.
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Battery TypeCR2032 3V Lithium Coin
BrandPrimary Arms
Click Value1/2 MOA
Eye Relief2.70 in
Field View 10037.50 ft
Focal PlanePrism Scope
Manufacturer.Primary Arms
Optic SeriesSLx
ReticleACSS CQB M1
Turret FeaturesCapped Turrets, Tool Adjustable
Weight14.9 Oz
  • Primary Arms 2.5x and 4x ACSS Review by MrGunsNGear

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

Ratings & Reviews

89 reviews

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I should get a commission!


I have a couple of Burris AR332s which I like a whole lot. But when Primary Arms offered killer deals on this model, I bought a couple. Their price right now is still perfectly reasonable, especially with free shipping and given the current climate. I love this optic, more than the AR332 with which I was perfectly happy. These are lighter than the Burris but just as quick to get on target and the elevation dots work great. I had two friends out to shoot a couple months ago and they were really impressed. Now that this optic is back in stock, they are both buying for themselves. I should be getting a commission for this!

Perfect for my needs.

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Easy to mount and very clear glass. Iight weight and I can use with both eyes open. Seems to be holding zero on 7.62x39 ar.

Fast easy target acquisition even at close range


After adjusting the optic it is clear and crisp. Make sure you use blue thread locker on the screws that hold the mount on and the thumb screws that tighten to the picatinny rail. Once sighted in I was able to achieve fast accurate hits on small targets easily at 100 yards. The glass is very clear and the field of view is tremendous. I can even rapidly acquire targets at incredibly close ranges as well so there is no need for offset irons.

Best bang for your buck🇺🇸

by -

You will be hard pressed to beat this optic!

I haven't found its limit yet

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I am a new target shooting enthusiast. This thing is easy to zero after watching YouTube videos. Good solid clicks with each adjustment. Make sure to secure the nuts holding it on with a socket by hand and it won't come off or loosen. At 25 yards I can shoot 556 inside of a quarter all day long with a 16" barrel. At 50 yards its more like a pack of gum. At 100 yards I can shoot inside of a floppy disk. I have put about 500 rounds down range with it and am making tweeks here and there as I learn more. This thing is solid. The lighted reticle is nice but so far I prefer to shoot with it off. You won't regret picking one of these up.



The bdc works for 7.62x39 russian out to 400 yards according to Strelok pro !

Excellent CQB and mid range optic!!!


I have a couple of these and love them!!! The only thing I will recommend, is putting loctite on the bolts that hold the optic to the mounting base. The glass is clear, the etching is excellent quality, and they hold zero through hard abuse.

Great optic for my 11.5

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Came as advertised with ACSS, using it for my 11.5 AR pistol , runs great

Exceptional Optic at a phenomenal price!

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Words won’t do this little optic justice.
<br>If you are looking for a solid optic for CQB out to 300yards and beyond, look no further!
<br>The only other optic I would consider is the ACOG at $1,200.00.

Just buy it


Bought this last year for my ar9 and this thing is awesome. I could demolish a 3" bullseye Target at the range all the way back (75 ft). It's small, light and accurate for such a inexpensive scope. Great job Primary Arms.