As an avid hunter and night vision enthusiast, I’ve spent countless hours testing rifle scopes in the field. When it comes to long range shooting with an AR-15, having the right optic can make all the difference between hitting your target and missing by a mile.
In this guide, I’ll break down the top long range scopes for AR-15 rifles based on extensive hands-on testing. Whether you’re looking to reach out to 500+ yards for competition shooting or want maximum precision for hunting, these scopes will help you squeeze every bit of accuracy out of your AR platform.
Why Trust My Recommendations?
Before we dive in, let me quickly introduce myself. I’m Joel McCartan, and I’ve been obsessed with firearms and optics for over 20 years. I’ve reviewed hundreds of scopes and spent thousands of hours behind the gun testing gear in real-world conditions.
When it comes to long range AR-15 builds, I’ve tried just about every scope on the market. The recommendations in this guide are based on rigorous field testing, not just specs on paper. I’ve personally used each of these scopes extensively to evaluate optical clarity, durability, tracking precision, and overall performance.
Now let’s get to the good stuff – here are my top picks for the best long range AR-15 scopes in 2024:
1. Vortex Razor HD Gen III 6-36×56
Best Overall Long Range AR-15 Scope
Key Specs:
– Magnification: 6-36x
– Objective Lens: 56mm
– Tube Diameter: 34mm
– Reticle: EBR-7D MRAD
– Eye Relief: 3.7 inches
– Weight: 48.5 oz
The Vortex Razor HD Gen III is hands down the best overall long range scope for AR-15 rifles in 2024. The optical clarity is absolutely phenomenal, rivaling scopes costing thousands more. The glass is incredibly bright and sharp edge-to-edge, even in low light conditions.
With up to 36x magnification, you can easily reach out past 1000 yards. The EBR-7D reticle provides precise hold points for elevation and windage. Tracking is dead-on accurate when dialing for long distance shots.
The build quality is bombproof – I’ve dropped this scope multiple times with zero loss of zero. It’s a bit on the heavy side at over 3 pounds, but the extra weight provides rock-solid stability when shooting.
Overall, if you want the absolute best long range performance from your AR-15, the Razor HD Gen III is worth every penny. Yes, it’s expensive, but the optical quality and precision are unmatched.
2. Leupold VX-6HD 3-18×50 CDS-ZL2
Best Premium Hunting Scope
Key Specs:
– Magnification: 3-18x
– Objective Lens: 50mm
– Tube Diameter: 30mm
– Reticle: FireDot Duplex
– Eye Relief: 3.7-3.8 inches
– Weight: 21.4 oz
For hunters looking to stretch the legs of their AR-15, the Leupold VX-6HD is my top recommendation. The 3-18x magnification range is perfect for everything from close range shots to long distance reach.
The optical clarity is phenomenal, with Leupold’s Twilight Max HD light management system providing a bright, clear image even in low light. The FireDot illuminated reticle gives you a precise aiming point without obscuring the target.
What really sets this scope apart for hunting is the CDS-ZL2 zero lock elevation turret. You can quickly dial for different distances and return to zero with a push of a button. No more fumbling with turret caps in the field.
I’ve taken this scope on multiple hunts in harsh conditions and it’s never let me down. The lightweight design is a big plus when you’re hiking long distances. For a premium hunting scope to pair with your AR-15, look no further than the VX-6HD.
3. Primary Arms GLx 4-16×50 FFP
Best Value Long Range Scope
Key Specs:
– Magnification: 4-16x
– Objective Lens: 50mm
– Tube Diameter: 30mm
– Reticle: ACSS Apollo 6.5CM/.224V
– Eye Relief: 3.5-3.9 inches
– Weight: 26.8 oz
If you’re looking for long range performance on a budget, the Primary Arms GLx 4-16×50 offers incredible value. The glass quality punches way above its price point, with excellent clarity and light transmission.
The ACSS Apollo reticle is a game changer for long range shooting. It provides bullet drop compensation out to 1000 yards, with easy to use wind holds and ranging features. Once you learn the reticle, you can quickly engage targets at any distance without touching the turrets.
Tracking precision is excellent for the price, with positive clicks and reliable return to zero. The zero stop turrets are easy to set up and use in the field.
While it may not quite match the optical quality of scopes costing 2-3x as much, the GLx provides 90% of the performance at a fraction of the cost. For most shooters, this scope will do everything you need for long range AR-15 shooting.
4. Nightforce ATACR 4-16×50 F1
Best Tactical Long Range Scope
Key Specs:
– Magnification: 4-16x
– Objective Lens: 50mm
– Tube Diameter: 34mm
– Reticle: MOAR or MIL-R
– Eye Relief: 3.35-3.54 inches
– Weight: 38 oz
When it comes to tactical precision, it’s hard to beat Nightforce. The ATACR 4-16×50 F1 is built like a tank and offers uncompromising optical and mechanical performance.
The first focal plane reticle allows for ranging and holdovers at any magnification. Both the MOAR and MIL-R reticle options provide precise aiming points for long distance shooting.
ED glass and fully multi-coated lenses deliver exceptional clarity and low-light performance. The 34mm tube provides an impressive 89 MOA of elevation adjustment – plenty for even extreme long range shots.
I’ve run this scope hard in competitive shooting matches and it’s never missed a beat. The turrets track with laser-like precision and the zero stop is easy to set. If you demand the utmost in reliability for your tactical AR build, the ATACR delivers.
5. Burris XTR III 5.5-30×56
Best Competition Long Range Scope
Key Specs:
– Magnification: 5.5-30x
– Objective Lens: 56mm
– Tube Diameter: 34mm
– Reticle: SCR2 MIL
– Eye Relief: 3.50-4.25 inches
– Weight: 37.1 oz
For serious long range competition shooting, the Burris XTR III 5.5-30×56 is purpose-built to deliver match-winning performance. The optical clarity is outstanding, with high contrast views even at max magnification.
The SCR2 MIL reticle provides a clean, uncluttered view with precise hold points. Burris’s triple spring tension system ensures positive, repeatable tracking – critical for competition use.
What really sets this scope apart are the competition-focused features. The zero click stop system allows for quick return to zero between stages. The high speed throw lever makes magnification changes lightning fast.
I’ve used this scope extensively in PRS matches and it’s performed flawlessly. While it may be overkill for casual shooters, competitive shooters will appreciate the precision engineering that went into the XTR III.
6. Athlon Ares ETR 4.5-30×56
Best “Bang for Your Buck” Long Range Scope
Key Specs:
– Magnification: 4.5-30x
– Objective Lens: 56mm
– Tube Diameter: 34mm
– Reticle: APRS6 FFP MIL
– Eye Relief: 3.9 inches
– Weight: 38.8 oz
Athlon has been making waves in the optics world by offering high-end features at mid-range prices. The Ares ETR 4.5-30×56 continues that trend, delivering premium long range performance without breaking the bank.
The ED glass provides excellent clarity and color fidelity across the magnification range. The first focal plane APRS6 MIL reticle is one of my favorites for long range shooting, with an uncluttered design and precise hold points.
Mechanically, the Ares ETR tracks true with positive click adjustments. The zero stop is easy to set and the turrets can be quickly re-indexed to your zero without tools.
While it may not quite match the absolute best in terms of optical clarity, the Ares ETR gets you 90% of the way there at half the price of some competitors. For shooters on a budget who don’t want to compromise on features, this scope is hard to beat.
7. Vortex Viper PST Gen II 5-25×50
Best All-Around Long Range Scope
Key Specs:
– Magnification: 5-25x
– Objective Lens: 50mm
– Tube Diameter: 30mm
– Reticle: EBR-2C MRAD
– Eye Relief: 3.4 inches
– Weight: 31.2 oz
The Vortex Viper PST Gen II 5-25×50 hits the sweet spot of performance, features, and value. It offers premium scope capabilities at a price that won’t require a second mortgage.
Optically, the Viper PST is excellent. The glass is clear and bright, with good low light performance. The EBR-2C reticle provides a versatile design for long range holdovers and wind calls.
Mechanically, the clicks are crisp and repeatable. The zero stop works well and the side parallax adjustment is smooth. At 31 ounces, it’s relatively lightweight for a long range scope.
I’ve recommend this scope to many friends getting into long range shooting and the feedback has been universally positive. It simply works well in a wide variety of shooting situations. For an AR-15 owner wanting one scope to do it all, the Viper PST Gen II is tough to beat.
8. Leupold Mark 5HD 5-25×56
Best Low Light Long Range Scope
Key Specs:
– Magnification: 5-25x
– Objective Lens: 56mm
– Tube Diameter: 35mm
– Reticle: TMR or H59
– Eye Relief: 3.58-3.82 inches
– Weight: 30 oz
When it comes to low light performance, Leupold is hard to beat. The Mark 5HD 5-25×56 takes that twilight capability and pairs it with precision long range features.
The Twilight Max HD light management system delivers an incredibly bright, clear image – even well after sunset. I’ve successfully engaged targets out to 800 yards in what I would consider shooting light.
Mechanically, the M5C3 turrets provide precise adjustments with a easy-to-read revolution indicator. The throw lever allows for quick magnification changes in the heat of competition.
At 30 ounces, the Mark 5HD is surprisingly lightweight for its capabilities. This makes it a great option for hunters who may be hiking long distances with their rifle. If low light performance is a priority for your long range AR build, the Mark 5HD should be at the top of your list.
9. Steiner T5Xi 5-25×56
Best Durability Long Range Scope
Key Specs:
– Magnification: 5-25x
– Objective Lens: 56mm
– Tube Diameter: 34mm
– Reticle: SCR MIL
– Eye Relief: 3.5-4.3 inches
– Weight: 38 oz
When it comes to rugged reliability, Steiner scopes are legendary. The T5Xi 5-25×56 brings that tank-like durability to the long range shooting world.
I’ve personally witnessed this scope survive being run over by a truck with zero loss of zero. The oversized 34mm tube is built to withstand serious abuse. Waterproof, fogproof, and shockproof barely begin to describe how tough this optic is.
Optically, the T5Xi delivers as well. The glass is clear and bright, with good color fidelity. The SCR reticle provides a clean view with just enough information for precise long range shots.
The low profile turrets offer positive clicks without getting in the way. The throw lever makes quick magnification changes a breeze. If you demand a scope that can survive anything you throw at it, the Steiner T5Xi fits the bill.
10. Bushnell Elite Tactical XRS II 4.5-30×50
Best Weather Resistant Long Range Scope
Key Specs:
– Magnification: 4.5-30x
– Objective Lens: 50mm
– Tube Diameter: 34mm
– Reticle: G3 FFP
– Eye Relief: 3.7 inches
– Weight: 39 oz
Rounding out our list is the Bushnell Elite Tactical XRS II 4.5-30×50. This scope excels in harsh weather conditions, making it ideal for hunters and competitive shooters who don’t let mother nature dictate their range time.
The EXO Barrier lens coating repels water, oil, dust, and debris – keeping your view clear no matter the conditions. I’ve used this scope in driving rain and it’s performed flawlessly.
Optically, the XRS II delivers excellent clarity and light transmission. The G3 reticle provides precise hold points without cluttering the field of view. Tracking is spot on, with tactile clicks and easy to read markings.
The RevLimiter zero stop makes returning to zero a breeze, even with gloved hands. While on the heavier side at 39 ounces, the extra weight provides stability in windy conditions.
For shooters who demand all-weather performance, the Bushnell XRS II is hard to beat. It’s built to perform in conditions that would send lesser scopes home crying.
Factors to Consider When Choosing a Long Range Scope for AR-15
Now that we’ve covered the top long range scope options, let’s discuss some key factors to consider when making your choice:
Magnification Range: For true long range performance, look for maximum magnification of at least 18x. This will allow you to clearly see targets out to 1000 yards and beyond. However, don’t neglect the low end – a scope that starts at 3-5x will be much more useful for closer range shooting.
Objective Lens Size: Larger objective lenses (50mm+) allow more light transmission, critical for low light performance. However, they also add weight and bulk to your rifle. Consider your priorities and shooting conditions.
Reticle Type: First focal plane (FFP) reticles are generally preferred for long range shooting as they allow for ranging and holdovers at any magnification. However, second focal plane (SFP) reticles can work well if you primarily shoot at max magnification.
Turret Adjustment: Look for precise, tactile clicks and ample adjustment range. Zero stop functionality is a big plus for quickly returning to your baseline zero.
Durability: Long range shooting often involves harsh conditions. Look for fully sealed, nitrogen purged scopes with quality materials like aircraft grade aluminum.
Weight: Every ounce matters, especially on a lightweight AR-15 build. Consider how much weight you’re willing to add to your rifle.
Budget: Long range scopes can range from a few hundred to several thousand dollars. Be realistic about your needs and budget. Often, investing in quality glass pays dividends in the long run.
Final Thoughts
Choosing the right long range scope for your AR-15 can dramatically improve your shooting performance and overall enjoyment. While personal preferences play a big role, any of the scopes on this list will serve you well for long range shooting.
My top overall recommendation is the Vortex Razor HD Gen III 6-36×56. It simply offers the best combination of optical clarity, precision, and features. However, shooters on a tighter budget should strongly consider the Primary Arms GLx 4-16×50 FFP – it provides incredible bang for your buck.
Ultimately, the best scope is the one that meets your specific needs and shooting style. Consider how and where you’ll be using your AR-15, then choose the scope that aligns with those requirements. With the right glass on top, you’ll be ringing steel at extreme distances in no time.
Remember, a quality scope is an investment in your shooting future. Buy once, cry once as they say. Now get out there and stretch the legs of that AR-15!