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Primary Arms

Primary Arms SLX 5x36mm Gen III Prism Scope - Multiple Illuminated Reticles

  • Based on 206 reviews
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Features

  • ACSS 5.56/.308 reticle: Glass-etched reticle functions with or without illumination and provides BDC holdovers, wind holds, moving target leads, and an integrated ranging system calibrated for 5.56 NATO, .223 Remington, 5.45x39mm, and .308 Winchester out to 800 yards.1/4 MOA capped turrets with tactile, audible clicks for precise zeroing
  • Extended Eye Relief/Wide FOV: 2.5 in. to 3 in. of eye relief pairs with an 18.8 ft field of view at 100 yards for a clear, forgiving sight picture that supports fast target acquisition at close range and extended distances
  • 10 illumination settings: Dual-color illumination offers 5 red and 5 green brightness levels for fast reticle acquisition across varying lighting conditions. The partially illuminated horseshoe and center chevron design draws the eye naturally for quick shooting
  • Rugged construction: Fixed 5x magnification prism scope weighs 18.4 oz with a hardcoat anodized black finish; waterproof, shockproof, and fog resistant. Integrated recoil lugs and large diameter crossbolts provide exceptional clamping power; removable M1913 top rail accepts piggyback red dot sights or accessories
  • Primary Arms Lifetime Warranty: Backed by Primary Arms' Limited Lifetime Warranty against manufacturer defects, materials, and workmanship. Transferable to any owner without proof of purchase

Brand: Primary Arms


Color: Black


Style: ACSS-5.56/.308


Sport: shooting


Item Weight: 520 Grams


Material: Aluminum


Magnification Maximum: 5 x


Magnification Minimum: 5 x


Compatible Devices: Rifle


Mounting Type: Clamp Mount, Picatinny Mount


Magnification Maximum: 5 x


Magnification Minimum: 5 x


Compatible Devices: Rifle


Mounting Type: Clamp Mount, Picatinny Mount


Night vision: No


Field Of View: 18.8 Feet


Reticle Type: ACSS 5.56


Item Weight: 520 Grams


Color: Black


Product Style: ACSS-5.56/.308


Material Type: Aluminum


Brand Name: Primary Arms


Sport Type: shooting


Model Name: PAC5X-GENIII-ACSS-5.56


Manufacturer: Primary Arms


UPC: 818500014935


Global Trade Identification Number: 35


Model Number: PAC5X-GENIII-ACSS-5.56


Manufacturer Part Number:


Warranty Description: Limited Lifetime


Included Components: AR-height riser, CR2032 battery (installed), Flip-up lens covers, Instruction manual & warranty documentation, Lens cleaning cloth, Removable Picatinny top rail


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Works great.
Style: ACSS-5.56/.308
This is a great optic, especially if you have an astigmatism. Highly recommend.
Reviewed in the United States on October 17, 2025 by Amazon Customer
    • Primary Arms SLX 5x36mm Gen III Prism Scope
Style: ACSS-5.56/.308
Great Optic, very easy installation, multiple brightnesses, good eye relief
Reviewed in the United States on October 31, 2025 by Roger Burke
    • So far so good
Style: ACSS-5.56/.308
This seems like a pretty nice scope so far. I’ve only taken it to the range and zeroed it in so I don’t know how well it will hold the zero yet. it was easy to adjust and had a really clear sight picture and the green reticle stands out very well. Soon I will take it to an outdoor range so I can see what kind of accuracy I have at 300 meters. ... show more
Reviewed in the United States on June 5, 2023 by GenX
    • Good scope
Style: ACSS-5.56/.308
Works like it should.
Reviewed in the United States on June 17, 2025 by Robert Bradley
    • Nice optic w/5X magnification
Optic has a nice weight to it and seems well made. Like the 5X maginification if you want to shoot at longer ranges and it does have a BDC. I like the option of having 5 brightness settings in either red or green. Also nice having the option on top to mount a reflex sight. Also comes with an optional spacer to adjust the height from the picatinny rail. Included caps seem durable but I've only had it a week. Cons: You have to turn the illuminated chevron on/off, no motion activation so if you accidentally leave it on, you could replace the battery sooner than expected. Some lower priced optics have motion activation, so not sure why at this price point it doesn't have it. Also included are three small tools to aid in installation and removal of the optic, top mount picatinny rail and spacer block. The instructions didn't state what the torque value of the cross-bolts for mounting, a quick call to customer service and 25-30 in lbs and your good to go. The mounting bracket is built into the bottom of the optic itself. This is a simpler design than Red Dots that have scope rings. However, if the horizontal line on the reticle is angled down to the left or right (not level) there is no way to correct this (confirmed by customer service). If there are rings, loosen, rotate and tighten. The optic I received had this problem so it's being returned. ... show more
Reviewed in the United States on March 6, 2023 by T. Freeman
    • Outstanding scope
This is the third primary arms Prism Scope I have bought. It's the third because the first two are excellent products and this one is just a good. Two are on 5.56's and this on a .308. The reticle allowed target acquisition on a fast-moving coyote at approx 80 meters. The only suggestion I have is to publish the torque specifications in the owner's manual (if it's listed in the manual, I could not find it) for the cross bolts that connect to the picatinny rail (20-25 inch pounds). ... show more
Reviewed in the United States on September 2, 2022 by JT McHan
    • For the money you can’t go wrong
I have been shopping around for something with magnification for awhile and narrowed my search to a prism scope. I have looked at and threw most if not all of the popular optics, Trijicon, Vortex, Burris, Sig Sauer, and even some of the lesser known brands. The PA slx5 is no Trijicon Acog but it’s pretty damn close. At a quarter of the price I couldn’t justify spending that much more. Holds zero too. In terms of “best bang for your buck” this scope is it. ... show more
Reviewed in the United States on July 31, 2022 by Pat
    • Great optic
Overall great optic. Perfect alternative to red dots if you have astigmatism, the reticle is crisp and clear. Definitely recommend
Reviewed in the United States on October 30, 2022 by Bryan

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