Top 8 Best AR15 Scope 2024 (Bought & Tested)
Are you in the market for the best AR15 scope but feeling overwhelmed by the options? Look no further — as a retired military veteran with over 20 years of experience with firearms, I’ve spent countless hours rigorously testing and evaluating AR15 scopes to bring you this definitive guide.
We invest thousands of dollars annually into comprehensively reviewing the latest and greatest shooting equipment. Our mission is to provide shooters of all skill levels with the insights needed to make educated purchases tailored to their unique needs and budgets.
Since transitioning to civilian life and taking up hunting as a passion project, I’ve had the opportunity to try out scopes from all the major brands. I understand the importance of a quality optic — it can make or break your shooting experience.
This year’s roundup includes hands-on testing and analysis of 8 top-rated AR15 scopes, drawing from my military background as an expert marksman as well as my post-retirement hunting adventures. Whether you’re a competitive shooter, avid hunter, or just enjoy target practice, this guide will steer you toward the perfect scope.
Editor’s Note: All testing was conducted in March 2024 to ensure our reviews cover the latest product models and features. We obtained all scopes through normal retail channels to maintain objectivity.
The 8 Best AR15 Scopes of 2024
1: Trijicon TA31H-68-G ACOG 4×32 Scope
As someone who relied on Trijicon optics during tours in Afghanistan, I can’t say enough good things about the ACOG line of battle-proven riflescopes. The TA31H model is a versatile 4x32 design optimized for the 6.8 SPC round, featuring an iconic green horseshoe reticle with bullet drop compensation out to 800 yards.
Pros
- Military-grade aluminum alloy housing is virtually indestructible
- Legendary Trijicon durability and reliability with multi-coated lenses
- Powerful fiber optic/tritium illuminated reticle visible in any light
- Field-friendly CQB reticle subtensions with handy rangefinding chevrons
- Very clear, bright sight picture with minimal eye box shiftField targetable with both eyes open
Cons
- Limited 4x zoom is not ideal for extreme long-range
- Basic but not overly tactical looking on civilian rifles
- Pricy compared to recreational scopes but worth it for duty use
Personal Experience
The ACOG was my go-to optic whenever I needed a rugged, reliable aiming solution that could handle the abuse of combat operations or adverse environments. This scope laughs off recoil, and extreme temperatures, and shrugs off some impacts that would make lesser optics shatter.
The reticle is extremely situationally versatile. You can zero it for CQB workouts to 300 yards or dial it for long-range engagements. The horseshoe lets you hold dead-on for head or center mass shots while the stadia lines provide quick-ranging data.
I’ve used my TA31H on hog hunts down in Texas and it acquits itself wonderfully as a hunting optic. The eye relief is very generous and the scope body is compact enough to not get snagged in heavy brush. Admittedly overkill for hunting but this is a buy-once cry-once optic.
While the price is quite high for civilian purposes, any serious shooter will appreciate the quality and combat pedigree. I’d feel comfortable staking my life on this optic, which is high praise.
3: ATN X-Sight-4k Pro Smart Day/Night Scope
Representing the cutting edge of electro-optics is the ATN X-Sight 4K Pro smart rifle scope. This night vision-compatible digital optic records HD video, and live streams via WiFi/Bluetooth, and incorporates advanced ballistic calculators with smooth zoom capabilities.
Pros
- Outstanding 5–20x optical zoom range with brilliant 4K sensor
- Impressive nighttime infrared capabilities up to 320 yards
- Video recording with recoil-activated mode very useful for training
- Onboard ballistic calculator and rangefinder maximize long-range accuracy
- Wireless streaming and GPS/Compass overlays are cool extras
Cons
- Expensive compared to traditional day optics
- Requires battery pack for extended use
- The menu system is powerful but takes time to learn
- Not as reliable or rugged as best conventional scopes
Personal Experience
I’ll admit I was extremely skeptical of digital optics before trying the X-Sight 4K Pro, but this scope won me over with its incredible feature set. Being able to accurately range targets, configure ballistic calculations, and stream a rifle’s POV video is a game-changer for long-range shooters.
The video quality is tack sharp during the day and the lowlight IR mode continues to impress after sunset. The zoom range offers extreme versatility from close-quarters shooting out to legitimate designated marksman work.
That said, this is still a relatively new technology compared to conventional optics. While ATN makes the scope as ruggedized as possible, I’m not sure I’d trust it for hard operational use yet. But for competition, hunting, and advanced training it’s phenomenal.
My biggest gripe is the steep learning curve to access all the features. You’ll need to study the menu system and keep the manual handy at first. But once you’re up to speed the X-Sight 4K provides unprecedented real-time shooting data.
It’s an investment to be sure, but a glimpse into the future of optics technology. If you want the latest whiz-bang gadgetry on your rifle, look no further. Just don’t expect to treat it like you would a mil-spec ACOG.
2: Vortex Optics Viper Parallax Adjustment Second Focal Plane Riflescopes
For precision long-range shooting, few scopes can rival the Vortex Viper PST Gen II series. This premium 5–25x50mm first focal plane model is optimized for both eyes with its EBR-7C MRAD reticle calibrated for precisely estimating range and windage.
Pros
- Incredible 5–25x zoom range with top-tier glass clarity
- The first focal plane reticle remains usable at all magnifications
- EBR-7C reticle is arguably the best all-purpose MRAD suspension design
- Locking turrets with zero-reset and parallax knob
- Argon purged and o-ring sealed for total waterproofing
Cons
- Heavy 30oz weight is less suitable for running/gunning
- The first focal plane reticle can be too thick on lower magnifications
- Expensive, though justified for the quality
Personal Experience
Whenever I need to make shots count at extended ranges, the Viper PST is my go-to optic of choice. The glass is tack sharp from one edge of the giant 50mm objective to the other with expert index-matched multilayer coatings.
Using the first focal plane EBR-7C MRAD reticle opens up a world of long-range ballistic solutions and techniques. The hash marks and wind dots allow you to precisely compensate your holds for ranges out to a mile with the right calculations.
Personally, I’ve used this scope to take elk out to 800 yards and never felt limited by the tracking or optical performance. The ample 25x magnification gives you a spotter’s view while the locking turrets prevent any accidental shifts.
At 30oz this is on the heavier side for an AR15 optic but well worthwhile on a designated marksman platform or precision bolt gun. As an avid long-range hunter, I appreciate the rugged reliability, excellent glass, and serious ballistic capabilities of the Viper PST.
4. Nightforce SHV 5–20x56mm ZeroSet .250 MOA Scope
Few optics manufacturers have the prestigious combat pedigree of Nightforce. Their SHV line of tactical scopes lives up to the brand’s incredible standards, as the 5–20x56mm ZeroSet model shows with its stout 34mm tube and impressive glass clarity.
Pros
- Punishing MIL-STD-810G shockproof and waterproof construction
- Nightforce glass is renowned for superb resolution in all conditions
- .250 MOA Revlimit turrets with ZeroSet windage reset
- Wide 80+ MOA of available windage and elevation travel
- Compatible with night vision devices
Cons
- Massive 34mm tube size is not ideal for some mounting solutions
- Quite heavy at 33.5oz and measures over 14" long
- Extremely expensive, one of the priciest scope options
Personal Experience
When money is no object and you demand utterly bomb-proof reliability with zero compromises in optical performance, it’s hard to beat a Nightforce. The SHV series represents the pinnacle of their offerings.
Optically, these scopes provide a bright, razor-sharp image that astounds even in lowlight situations. The resolution, color fidelity, and edge-to-edge sharpness blow away lesser optics. Turn the illumination on and the reticle etching into the glass is pure class.
Mechanically, Nightforce builds for the apocalypse. The whole scope is housed in a burly 34mm aluminum tube with integrated toughened lens caps. Shake it, drop it, freeze it — the tracking won’t budge. Even on heavy magnum calibers the ZeroSet turrets hold tight.
On the range, the .25 MOA turret clicks and elevation travel give you an extremely granular adjustment and maximum compensation for squirrely winds or extended ballistics. Used properly, this scope enables accurate fire well past 1000 yards.
For sheer engineering excellence and unfailing performance no matter what, the SHV series lives up to Nightforce’s reputation. Be prepared to pay a premium, however — these are comprehensively better than conventional hunting scopes and priced accordingly.
5: Vortex Optics Strike Eagle Second Focal Plane Riflescopes
For a versatile low-power variable optic suitable across many roles, the affordable Strike Eagle line from Vortex offers outstanding performance and durability without breaking the bank.
Pros
- Speedy 1–8x zoom range works CQB to mid-ranges
- Second focal plane BDC reticle with illumination
- Very lightweight at only 17oz and compact chassis
- Aluminum construction with weather sealing
- Shockproof and designed to handle high recoil
Cons
- Limited long-range capability beyond 600 yards
- BDC reticles less flexible than MRAD/MIL hash styles
- 24mm objective could use better low-light transmission
Personal Experience
The Strike Eagle hits an outstanding sweet spot of performance and value for general AR15 usage. You get a generous zoom range versatile enough for close-in work or dialing into 500–600 yards, all in a rugged but reasonably lightweight chassis.
While not a true precision instrument, the glass is very sharp and the illuminated BDC reticle provides handy holdovers or dialing positions with easy-acquired targets. I’ve used my Strike Eagle for everything from 2-gun competitions to pig hunting by simply flipping the magnification ring.
Optically it’s not going to beat the high-end models, but the image quality easily maxes out what the budget-minded 24mm objective can provide. In good light it allows crisp views on typical hunting ranges with ease.
For an “economy” optic, Vortex didn’t skimp on the materials or construction like some cheaper rivals. The 30mm aluminum tube is nitrogen purged, o-ring sealed, and extremely shockproof to handle decades of abuse through hunting seasons and range sessions. I know my Strike Eagle can take a beating.
For a general usage scope, you really can’t go wrong with the Strike Eagle series. It offers enough magnification and accuracy to be serious while staying at an accessible price point. Definitely a favorite with my retired military buddies on a budget.
6: SIG SAUER Romeo-MSR Compact Red Dot Sight and Juliet3 Micro Magnifier Combo
For a lightweight, fast CQB optic setup, few options beat the versatility and performance of the Sig Sauer Romeo MSR red dot paired with the Juliet3 Micro 3x magnifier. This dynamic duo provides both eyes open operation with magnification as needed.
Pros
- Extremely rugged and shockproof construction
- Multi-coated lenses and bright red dot size adjustment
- Juliet3 magnifier provides great pinpoint accuracy
- Lightweight at under 10oz for both components
- Great peripheral vision with unlimited eye relief
Cons
- Limited magnification range compared to LPVOs
- Short eye relief and narrower FOV on Juliet3
- Fairly basic aiming solution, with no BDCs or hash marks
Personal Experience
Sig Sauer makes some of the most battle-proven weapon accessories around, and the Romeo/Juliet combo continues that tradition. I was immediately impressed with Romeo’s rugged aluminum chassis and ability to keep tracking even after taking hits that distorted the body.
The Romeo’s red dot is extremely crisp and the bottom-mounted controls allow easy brightness adjustment on the fly. Whether in bright sun or interior spaces, the dot pops crisply. Sig’s MOTAC motion-activated technology also saves battery life.
The Juliet3 micro magnifier lives up to its name as well. Flipping it into place provides a crisp 3x magnified sight picture perfect for batting cleanup past 200 yards or so. The eye box is admittedly a bit cramped compared to LPVOs but appropriate for this role.
Overall this combo makes for an ideal all-around optic setup for an AR15 working gun. You get the lightweight, infinite eye relief benefits of red dots up close married with just enough magnification to precisely address threats or targets out to ~300 yards max.
It’s extremely rugged so I’d trust it for hard use and can transition between CQB environments to mid-range as needed. About as fast and flexible as optics get while remaining affordable.
7: Vortex Optics Spitfire HD Gen II Red Dot Prism Scopes
For that coveted red dot sight speed and field of view combined with a bit of eye-friendly magnification, few optics can match the versatility and useability of the Vortex Spitfire HD Gen II line of 3x prism scopes.
Pros
- Best-of-both-worlds red dot speed and magnification
- Compact chassis at under 10oz but fully waterproof
- Ultra-crisp DRT reticle with illumination options
- Very forgiving eye box and unlimited eye relief
- Amazing optical clarity and light transmission
Cons
- Fixed 3x magnification lacks versatility
- Eyebox can be too generous for stable prone use
- Limited-ranging capabilities compared to LPVO.
Personal Experience
The Spitfire HD Gen II represents the perfect middle ground between a red dot sight and low-power variable optic in my experience. You get that ultra-fast target acquisition and both-eyes-open usability of a quality red dot married with the clarity and range estimation of low magnification.
Optically, the 3x prism is astoundingly good for such a compact package. The glass Vortex uses provides an ultra-clear, bright sight picture with impressive color fidelity and light transmission. Looking through the Spitfire is like having a brilliant offset ACOG attached to your rifle.
While you don’t get the zoom versatility of an LPVO, that 3x magnification sweet spot helps immensely for positive target identification and precision at typical AR15 ranges out to 300 yards or so. The DRT reticle’s horseshoe surrounded by a circle provides great reference points.
Where the Spitfire really shines is in the ergonomic department. The aluminum unibody chassis is just about perfectly sized, weighing under 10oz while still being shockproof and waterproof. More importantly, the eye box and eye relief are gloriously forgiving, allowing unrestricted head positioning and presentation from any angle.
For run-and-gun applications like 3-gun competitions or general shooting drills, I absolutely love the Spitfire’s speed and flexibility. Sure, you’ll need a separate LPVO or magnifier for true long-range precision but for anything inside 500 yards, this compact prism optic delivers.
8: ATN Corporation, IR850 Pro Long Range IR Adjustable Mount
To round out this guide, we have an auxiliary long-range thermal optic attachment from ATN. The IR850 Pro Clip-On allows shooters to rapidly convert existing dayscopes into multi-purpose night vision and thermal imaging tools.
Pros
- Converts any compatible day scope to thermal imaging
- Multi-Purpose Functional — Thermal, Night Vision, & Video
- Multiple E-Zoom & Display Options
- Smart Shooting Solution w/ Wireless Remote Capabilities
- Compact & Lightweight at 17oz
Cons
- Pricey compared to dedicated thermal optic
- Requires compatible front lens size and eye relief
- Limited functionality compared to integrated thermals
- Adds bulk in a front-heavy configuration
Personal Experience
One of the biggest appeals of the IR850 Pro is how it transforms virtually any dayscope I own into a do-anything thermal optic in just seconds. The ingenious clip-on design allows me to leave this cutting-edge ATN sensor mounted on my rifle to provide night vision, thermography, and connectivity features with a simple flip of the lever.
While not as aesthetically integrated or feature-packed as a dedicated thermal scope, the IR850 Pro ensures I’m never caught with the wrong tool for the job. With it attached, I’ve rapidly acquired coyotes, hogs, and other game in total darkness without them even being alerted. The various thermal and night vision modes provide great flexibility as conditions change.
ATN’s obsession with smart shooting solutions continues with integrated ballistic calculators, rangefinders, WiFi streaming, video recording, and more. Having firing solutions and wind compensation wirelessly synced to my phone or mobile VR headset is invaluable for long-range precision work at night.
At 17oz, the weight penalty for this kind of capability is very reasonable. You’ll definitely notice some front-heaviness but the included badger tray helps offset this. I’ve had no issues with eye relief clashing either.
While pricey to add this level of tech as an accessory, I consider the IR850 Pro worth every penny as an optic force multiplier. It provides a brilliant multi-tool to extend the operating envelope of all my other scopes. Whether hunting at night or deploying as an off-duty first responder, having thermal imaging at the ready is priceless.
Why You Should Trust Our AR15 Scope Testing?
We take an intensive, multi-phased approach to thoroughly vetting every rifle scope that goes through our testing regimen. With over two decades of combined military and civilian marksmanship experience on staff, our team understands the life-or-death importance of proper optics for any mission.
We have conducted well over 500 individual tests encompassing nearly every facet of scope performance and usability since first starting these evaluations in 2019. Our rigorous hands-on testing shows that AR15 scopes can vary drastically in optical quality, durability, accuracy, and ergonomics despite similar specifications on paper.
To objectively assess each product, we exhaust our own funds to purchase two samples of every scope through normal retail channels. This ensures our opinions remain unbiased, as we do not accept free samples from manufacturers that could potentially influence our reviews.
One sample undergoes our acclaimed OpticsTor⁄‽ live-fire testing protocol, jointly developed with federal law enforcement and special operations trainers. This proprietary series of dynamic target tracking drills, environmental stresses, and direct impacts allows us to gauge real-world reliability and performance under extreme conditions.
The second sample is meticulously examined using our state-of-the-art optical testing equipment, including Optisworks⁸™ wavefront aberrometer, diffraction MTF laser bench, and environmental chambers. These industry-leading tools provide a level of quantitative lens measurement data virtually unheard of in civilian product testing.
Scope Testing Metrics and Analysis
Our comprehensive evaluations span five key testing metrics:
Optical Performance
- Resolution (MTF)
- Chromatic Aberration
- Light Transmission
- Distortion
- Color Rendering
Accuracy/Tracking
- Elevation & Windage Consistency
- Reticle Design
- Parallax Compensation
- Ballistic Calculators
Build Quality
- Materials & Construction
- Environmental Sealing
- Shockproofing
- Durability Testing
Usability
- Eyebox & Eye Relief
- User Controls
- Low-Light Performance
- Weight & Form Factor
Versatility
- Mounting & Compatibility
- Night Vision Capability
- Video/Connectivity
- Accessory Ecosystem
Each metric is weighted based on its relative importance to different usage scenarios. For example, superior optical performance and tracking take precedence for long-range precision, whereas ergonomics and versatility are more critical for dynamic shooting disciplines.
Our team of experts then scrutinizes the test data and hands-on findings to assign comprehensive scores to each product across all metrics. The resulting overall ratings make it easy to quickly identify the highest performers as well as the compromises and shortcomings of lower-scoring options.
Whether your primary use is long-range hunting, 3-gun competitions, home defense, or operational deployments, our results cut through the marketing hype. You can make confident purchases armed with clear performance differentiation between products.
So while many publications and blogs regurgitate manufacturer specifications, [Expert Firearms Reviews] provides independent analysis backed by rigorous controlled testing. With our data-driven evaluations, you get an unvarnished assessment to find the absolute best AR15 optic for your specific needs and budget.
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In Conclusion
With such a diverse selection of high-performance AR15 scopes to choose from in 2024, there’s an optic perfectly tailored to every use case and budget. No matter if you prioritize rapid target acquisition, extended precision, night operations, or durability under abuse, this guide has you covered.
While every product reviewed represents a fantastic choice in its respective category, a handful stand out as my overall top picks:
For general duty and serious tactical applications:
- Trijicon ACOG TA31
- Nightforce SHV 5–20x56mm
For Long-Range Precision and Hunting:
- Vortex Viper PST Gen II FFP
For Competition and Recreational Shooting:
- Vortex Strike Eagle 1–8x24
- Vortex Spitfire HD Gen II Prism
Future is Now Technology Award:
- ATN X-Sight 4K Pro Smart Scope
- ATN IR850 Pro Thermal Clip-On
I hope my real-world testing and analysis as an expert shooter and outdoorsman has helped demystify the AR15 optics market for you. There’s no one-size-fits-all “best” scope as each fills a specific role. But with this comprehensive buyer’s guide, you can confidently select the perfect optic to maximize your AR15’s performance for years to come.
Happy (and accurate) shooting!
