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Primary Arms SLX 5x36mm Gen III Prism Scope

  • Based on 150 reviews
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Availability: Only 3 left in stock, order soon!
Fulfilled by Primary Arms

Arrives Friday, Oct 16
Order within 2 hours and 42 minutes
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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

Description

This Primary Arms prism scope is part of the SLx optics line. SLx optics built their 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 5X Compact Prism Scope Gen III with improved ACSS 5.56 reticle is the most powerful prism scope design. The 5X magnification and bright illuminated horseshoe and chevron reticle allow for surprisingly fast, both-eyes-open shooting at close range, while the ACSS reticle allows for consistent hits on targets out to an impressive 800 yards. The Gen III scope has been equipped with the next generation ruggedized mounts to provide flexible mounting options with incredible clamping power. The heart of the tough Gen II 5X Prism Scope is the ACSS 5.56 reticle that combines ranging, wind leads, moving target leads, and ballistic drop compensation out to 800 yards. To the right of the BDC ladder is the 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 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. A center chevron allows for an infinitely precise aiming point that won't occlude the target. Additionally, the glass etched reticle does not require batteries or illumination, but 10 brightness settings (5 red and 5 green) allow for fast acquisition in close quarters, or enhanced visibility in fading light, powered by a common CR2032 battery! The SLx 5X Gen III has even greater strength and flexibility than ever before with the next generation ruggedized mounting system. We’ve 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. EXPORT CONTROLLED ITEMS: These items are controlled for export and may require an export license from the U.S. Government. Buyer acknowledges that Buyer is responsible for obtaining all export licensing authorizations and filing all export documents prior to export from the United States. The heart of the tough Gen II 5X Prism Scope is the ACSS 5.56 reticle that combines ranging, wind leads, moving target leads, and ballistic drop compensation out to 800 yards. This optic reticle color can be changed to green to better suit your style. To the right of the BDC ladder is the 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 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. Red ACSS Reticle Green ACSS Reticle Auto Ranging Leading Your Target / Wind and Bullet Drift

Brand: Primary Arms


Color: Black


Style: ACSS-5.56/.308


Sport: shooting


Item Weight: 520 g


Material: Aluminum


Magnification Maximum: 5 x


Magnification Minimum: 5 x


Compatible Devices: Rifle


Mounting Type: Picatinny Mount


Magnification Maximum: 5 x


Magnification Minimum: 5 x


Compatible Devices: Rifle


Mounting Type: Picatinny Mount


Eye Relief: 6.4 centimeters


Field Of View: 18.8 feet


Reticle Type: ACSS 5.56


Item Weight: 520 g


Item Display Weight: 1.2 pounds


Color: Black


Product Style: ACSS-5.56/.308


Material Type: Aluminum


Brand Name: Primary Arms


Sport Type: shooting


Model Name: SLx


Manufacturer: Primary Arms


Item Highlight: 5x Prism Sight with ACSS 5.56/.308 Reticle & Dual-Color Illumination, Wide Field of View & Warranty Backed


Number of Items: 1


UPC: 818500014935


Global Trade Identification Number: 35


Model Number: PAC5X-GENIII-ACSS-5.56


Manufacturer Part Number:


Warranty Description: Limited Lifetime


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 16

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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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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