Primary Arms SLx Compact 1x20 Prism Scope - ACSS-Cyclops

I have used a multitude of optics, and this by far is one of the best regardless of price. The glass is very clear with no tinting, and the adjustable diopter is a God send, even when wearing corrective lenses. The eye relief is exceptional, and when mounted properly, gives the same both eye open experience as a traditional holographic / red dot. There have been complaints about the reticle being too small. I feel this is a personal preference. I think the reticle is perfect, remember, this is a 1x optic, not a zoom optic. The reticle gives you the extra ability for sub-tensions when you take your time, but is small enough for quick on target shots (much like a 2 moa red dot). The fact that the reticle is etched is icing on the cake; batteries go dead, no worries. The complaints about not day light bright...again, it is an etched reticle, during daylight bright situations, the black reticle shows fine, in low light, the illumination excels!

Great 1x optic with very crisp reticle! The ACSS reticle works really well...out to 50-75yds I use the chevron/ horseshoe like a red dot & it works great. For 100-200+ yards use the the chevron as a fine aim point and I can place shots quite accurately. Using the chevron features for >200yds requires lots of concentration on smaller targets but this is expected with a 1x. Was originally concerned that the reticle was too small but after two extended shooting sessions I’m really comfortable with it...even with 60yr old eyes plus glasses. The easy to use reticle, large field of view, and super clear glass will keep this optic on my AR carbine for the short to mid-range run & gun events. For the longer ranges will switch to the 3x PA which I really like too (& after using the Cyclops wish it also had the chevron rather than the center dot.....hint)

I have astigmatism so this 1 power optic is like a red dot but better. View is clear and sharp. Reticle dot is perfect size. The optic is perfect size, almost the size of a Sig red dot, not heavy. Tough solid build and it comes with flip up covers. Dial up illumination to me is better than pressing + or - buttons.

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<br>Nope, won't play that.

I've been looking for and researching for an optic that could help with my eyesight issues. I love a red dot just as much as the next guy. But astigmatism got me. So I took a chance with a Zero Magnification Prism style optic known as the Cyclops from PA. Glad I did. Now I have a quick CQB optic with an etched reticle that provides BDC, eye focus adjustment, and illumination that I can count on even with eyesight issues, and if the battery runs out, I still have an optic. I gave it 4 stars to be fair because I have not taken it to the range but I suspect it will perform as promised and it has plenty of 5 star reviews as it should. Dollar for dollar, and excellent optic.

With the awesome glass, eye relief, and build quality. This is as close as anybody has gotten a prism scope to be like a red dot. It is so quick to get a good view of your target. I have one complaint, and that is the reticle. It may be great for some shooters, but I find it too busy for a 1x option. Plus, the limited brightness options makes it difficult to pick up on bright, sunny days in my opinion. If you had the KISS reticle as an option, with better illumination, Primary Arms would crush the 1x prism competition. Regardless of the reticle, I am glad I purchased this scope. Still, the reticle and limited brightness for direct sunlight shooting makes me wish that the KISS reticle was an option.

Absolutely love this prism scope. I have been running it on a 300 Blackout (after relpacing a red dot with it) for the last 4 months are so in everything from rain and mud to high winds and dust. In all conditions, it has performed flawlessly. Target acquisition is smooth, quick and snappy when I'm on the go giving me clear, crisp views of everything down range. The chevron tip is as clear as a bell and I no longer have to worry about how much battery life I have left as it can be run without illumination thanks to its etched reticle. In fact, I can count on one hand how may times I've had to use its illumination capabilities as the reticle works perfect without turning it on under normal to low light conditions. The 3 times I've actually turned on the illumination were in extremely low light conditions, and again, flawless. Built tough and built to last. Love it.

Absolutely love this prism scope. I have been running it on a 300 Blackout (after relpacing a red dot with it) for the last 4 months are so in everything from rain and mud to high winds and dust. In all conditions, it has performed flawlessly. Target aquisition is smooth, quick and snappy when I'm on the go giving me clear, crisp views of everything down range. The chevron tip is as clear as a bell and I no longer have to worry about how much battery life I have left as it can be run without illumination thanks to its etched reticle. In fact, I can count on one hand how may times I've had to use its illumination capabilities as the reticle works perfect without turning it on under normal to low light conditions. The 3 times I've actually turned on the illumination were in extremely low light conditions, and again, flawless. Built tough and built to last. Love it.

Wow! I was so impressed with this optic. The glass is clearer than my EOtech’s, and the etched reticle is very fine. The BDC is very useful, especially with a magnifier. The donut of death on the ACSS reticle makes quick shots to a torso sized target very easy. This optic replaced my Eotech XPS2. Very pleased with it. My only gripe is that it is not as durable. From light training, a dent formed on the top of the scope, making the threads for a sunshade unusable. I was not planning on getting a sunshade, so it doesn’t bother me, but it concerns me about whether this optic would hold out through a combat scenario. As a civilian no longer overseas, I don’t need to worry about that, but I like knowing my equipment is bombproof. For $239, you’re getting the best you can get in this price range, no doubt about it. You won’t regret picking this versatile, clear, well thought out optic!

Great little optic made better when paired with a 3x magnifier. The "3000 hour battery life on a medium setting" however is a little misleading. 3 different brands of batteries, left at setting 5, I averaged 92 days or just a little over 2,200 hours. But 3 months of "set it and forget it" isn't bad at all. My astigmatism has made me transition away from standard red dots to LPVO's or prismatic sights and this optic works great for me

After using one on three different rifles the past few months I just bought two more. These are like a 1X mini acog, only with better features - adjustable illumination and adjustable diopter focus - at 1/4 the price!

This optic is solidly built. I can’t see anyone describing it as “fragile”. It is robust without presenting with excess weight.
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<br>The factory supplied base is wonderful. I wouldn’t bother upgrading it. The entire setup has flawless fit and finish. Adjustments are firm.
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<br>My sole concern is that the reticle is so profoundly small. The horseshoe is perfectly observable and does make a nice aiming point However, the chevron is difficult to see. I would like to see PA lose the horseshoe, and double the chevron. JMHO.
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<br>I would not even think of returning the optic to PA due to my few concerns. I am likely to purchase an additional one for my AR15 .22LR upper.

I have an astigmatism and though I'd give this 1X prism a try. It replaced an Aimpoint PRO on my 16" 5.56 rifle. I paired up the cyclops with a one of the new Holosun 3X magnifiers. Took it to the range and shot it out to 200 yds. The BDC works as advertised after a 50yd 0 with 64 grain .223 powerpoint ammo. Had a nice grouping of center mass hits out to the 8 ring on the target. The glass is very clear and the diopter lets you focus the reticle to your eye very easily. Definitely worth the money!

This optic is very nice for the price. I will warn you that the etching on the reticle is very small, so do not be surprised if you thought it was going to be bigger. If your eyes are extremely good you will not care. But my eyes are not bad, just a little less than great. Not what they used to be. I can still make out the etching and hit what I want, but it is a little more difficult than I thought it would be. Other than that I love it so far.

Great optic. The reticle is smaller than I expected. I was thinking it'd be closer to the ACSS Holosun red dot, but it's a good bit smaller. That being said, quality is fantastic. I'd love to see a model down the road that introduced a larger reticle, and that had green illumination.

As many have mentioned in previous reviews, the Cyclops is a well made and light weight optic with excellent glass. The reason I purchased the Cyclops is due to my difficulty in using a red dot sight. My eyes do not focus well on the projected red dot. The Cyclops solves that problem and more with the ACSS reticle. I will be buying more Cyclops in the future.

Blah, blah, blah, it's the best etched reticle scope for the money. If it broke tomorrow, I'd buy another.

I mounted this optic on a PSA AR-15 10.5 Pistol and out of the box the optic was zeroed for a 50/200 yard zero. Never had to open the turret caps! The glass is crystal clear and the supplied mount is solid. Thanks PA for making affordable products!!

This is honestly the best available solution for a compact light weight CQC optic for those of us that have an astigmatism. Perfect size and weight, glass is clear. I am rating it 5 stars because it is currently the best option I know of but I think it has a few cons, The Illumination could be a lot brighter, it simply is not daylight visible at all, But the main thing that bugs me is the Reticle is Too Small... Essentially the Chevron is so tiny its practically a little dot. IMO the size of the Reticle makes the ACSS Ranging functionality useless, the cheveron is supposed to allow you to adjust for bullet drop but if you cannot see where the various points are at on the chevron then you cannot use it how it was meant to be used... I am hoping for a Cyclops II to be released in the future that addresses those 2 small gripes... The Reticle needs to be double the size it is.
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Great option for us with vision issues (or not;))! I have an astigmatism and the diopter ring allowed sharp focusing of the reticle that fit my vision requirements. Sighting in was easy and the glass is very clear. Note - the OEM mount does not line up with a lower 1/3 co-witness ADM swing away mount I had on my PA LER 3X magnifier. The magnifier ended up about 1/4" higher than the top of the optic's rear sight ring. I had to buy the ADM absolute co-witness mount for the Cyclops so the magnifier would line up. Seems kind of counterintuitive but it worked. Once that was taken care of, adjusting the diopter ring on the magnifier brought the reticle clearly into view and looks almost as good as looking through the optic itself. Overall very happy and would buy again.

I bought an AR47 upper with front sight for a questionably cheap price from a different site. Turns out, the front sight was crooked. But the rest of the parts were good, so I knocked it off and replaced the gas block.
<br>Then after verifying functionality, I got this. What a treat. Even with my mediocre vision, the chevron is crisp. With glasses, even better.
<br>Sighting in at about 50 yards, only took a few clicks on each knob. The tip of the chevron hits like a tack.

I wanted a multi use optic for my patol rifle. It has survived being bounced around in a vehicle rack and impacts with solid objects. It has held zero through qualifications, CQB training, and off duty weekend ranges.

The ACSS is not small! I am quite impressed. The chevron and the range estimation hashes are clearly visible and sharp from CQB - 400+ yards target acquisition—and accurate. It’s an awesome reticle. Simple and highly effective. The adjustable diopeter focus ring really makes a difference and anyone can fine tune the focus to their eye(s).<br><br>Anyone who complains about “daylight reticle brightness” is seriously over exaggerating. The black reticle contrasts all dark and bright foliage from greens, browns, reds, yellows and in betweens. So far, there hasn’t been much of a scenario that needed illumination. Obvi perserving battery life exponentially. However I can see for dusk/dawn scenarios or building/room clearing the illumination being a huge plus. I’ve cleared my house numerous times to test this out. You’re welcome.

Built like a brick. Fast to pick up daytime with no illum. Glass quality seems to be better than other PA scopes, and they’re fine. A blessing for people with astigmatism and need a adjustable diaopter. Uses t1 mounts. Bang for buck 9/10.

I have this mounted on a Sig 556R (7.62x39) using a low mount I had laying around. (Compatibility with T1 type mounts a BIG plus.) The glass is very clear and the reticle and target are both sharper than I get with my astigmatism and a red dot. Bullet drop is right on at 300. The illumination isn't quite "daylight bright" in the AZ sun but the black reticle works great for most targets. There is the possibility of a dark target where the reticle won't be as easy to see. In that case you can use the illumination. The 1X is close enough that shooting both eyes open is very natural. Some have complained that the turret cap tethers can bind so you have to hold the tether while you are screwing the caps off or on. Since you should only have to do this when you zero it seems like a trivial matter.