The FN SCAR 17S is a force to be reckoned with, a battle-proven .308 rifle that demands an optic capable of matching its power and precision. Mounting the wrong scope can leave you underutilizing the platform’s true potential, whether you’re engaging targets at distance or need rapid acquisition up close. The right optic not only enhances accuracy but also complements the rifle’s robust and reliable nature.
Selecting the perfect sight involves balancing magnification range, reticle type, durability, and optical clarity. From close-quarters battle to long-range precision, the SCAR 17 is a versatile platform that requires a versatile or specialized partner on top. Our field testing in varied conditions has identified eight outstanding optics that stand up to the task and the rifle’s signature recoil impulse.
Top FN SCAR 17 Optics for 2025
- Vortex Optics Razor HD Gen III 1-10×24 FFP
- Trijicon ACOG 3.5×35 Scope Dual Illuminated
- Bushnell AR Optics 1-8x24mm Illuminated Riflescope
- Leupold Mark 5HD 3.6-18×44 M5C3 FFP
- Nightforce ATACR 4-16x42mm FFP Hunting Scope
- EOTech Vudu 1-10×28 FFP Riflescope
- Sig Sauer TANGO6T 1-6×24 FFP Riflescope
- Swampfox Optics Arrowhead 1-10×24 LPVO
Vortex Optics Razor HD Gen III 1-10×24 FFP
Often considered the gold standard for high-performance LPVO scopes, the Vortex Razor HD Gen III is a phenomenal match for the SCAR 17. Its 1-10x magnification provides an incredible range of utility, allowing for true red-dot-like speed on 1x and precise shot placement out to the limits of the .308 cartridge on 10x. The first focal plane EBR-9 reticle ensures your holdover points are accurate at every setting in between.
The optical system is exceptional, delivering outstanding resolution and color fidelity. The illumination is truly daylight bright, a critical feature for fast acquisition against varied backgrounds. Built around a 34mm aircraft-grade aluminum tube, this scope is engineered to handle the repeated shock and recoil of the SCAR platform without losing zero, making it a top-tier choice for serious use.
Trijicon ACOG 3.5×35 Scope Dual Illuminated
For those who prioritize absolute durability and simplicity, the Trijicon ACOG remains a legendary option. This 3.5×35 model offers a fixed magnification that is well-suited for the effective range of the SCAR 17 in many dynamic shooting scenarios. Its defining feature is the battery-free illumination system, which uses a combination of fiber optics and tritium to provide a always-on, self-adjusting reticle.
The forged 7075-T6 aluminum housing is nearly indestructible, inspiring confidence in the harshest environments. The “both eyes open” design, utilizing the Bindon Aiming Concept, allows for rapid threat engagement and superior situational awareness at closer distances. It’s a set-it-and-forget-it optic that excels in reliability, making it perfect for a duty or defensive rifle.
Bushnell AR Optics 1-8x24mm Illuminated Riflescope
The Bushnell AR Optics 1-8x24mm scope presents a fantastic value-oriented LPVO for the SCAR 17 owner. It provides a versatile 1-8x magnification range, allowing for fast close-range shots and more precise engagements at medium distance. The included Throw Down Power Change Levers make rapid magnification adjustments intuitive and fast, a handy feature in practical shooting situations.
Fully multi-coated optics ensure good light transmission and a clear sight picture. The illuminated BDC reticle is calibrated for .223/5.56, but the holdpoints can be effectively used with .308 with some practice and verification. With its capped turrets, IPX7 waterproof rating, and fog-proof construction, this scope is built to be a reliable workhorse without a premium price tag.
Leupold Mark 5HD 3.6-18×44 M5C3 FFP
When your mission with the SCAR 17 involves consistent long-range precision, the Leupold Mark 5HD is a premier choice. Its 3.6-18x magnification range is ideally suited for stretching the legs of the .308 round, providing ample zoom for target identification and shot placement at extended distances. The professional-grade optical system offers exceptional clarity and light transmission, even in challenging low-light conditions.
As a first focal plane scope, the PR2-Mil reticle remains usable throughout the entire magnification range. The robust 35mm main tube provides a wide adjustment range and incredible strength to withstand recoil. This scope is designed for shooters who require uncompromising optical performance and reliable tracking for making precise windage and elevation corrections.
Nightforce ATACR 4-16x42mm FFP Hunting Scope
Nightforce is synonymous with rugged reliability, and the ATACR 4-16×42 is built to excel on a hard-kicking rifle like the SCAR 17. Purpose-built for precision semi-automatic platforms, it features a compact and low-profile design that maintains a balanced feel on the rifle. The use of ED glass delivers remarkable image brilliance and clarity, reducing chromatic aberration for a sharp sight picture.
A key feature is the ZeroHold technology, which allows for an instant return to your mechanical zero and the ability to dial below it. This is incredibly useful for tactical or hunting scenarios where quick, repeatable adjustments are necessary. The scope’s durability and exceptional optical performance make it a trusted tool for demanding shooters.
EOTech Vudu 1-10×28 FFP Riflescope
EOTech brings its renowned holographic sight expertise to the LPVO market with the Vudu 1-10×28. This scope offers a top-tier 1x experience that feels very much like using a red dot, facilitating extremely fast close-range shooting. The first focal plane reticle design ensures consistent holdovers across the entire magnification spectrum, which is critical for a versatile scope on a .308 platform.
The glass quality is excellent, providing a bright and clear image. The reticle options are designed for speed and precision, often featuring a large outer circle for rapid acquisition on 1x that transitions to a precise center dot and tree for holds at higher magnification. It’s a strong competitor in the high-end 1-10x category, offering performance that stands up to the SCAR 17’s capabilities.
Sig Sauer TANGO6T 1-6×24 FFP Riflescope
Born from a military contract, the Sig Sauer TANGO6T is built to meet rigorous standards, making it a fitting partner for the SCAR 17. The 1-6x magnification range is a very popular and effective choice for most engagements with this rifle. Its first focal plane reticle allows for accurate holds at any magnification, and the illumination is bright enough for use in daylight.
Durability is a cornerstone of the TANGO6T, with a shockproof construction that can handle the .308’s recoil. It features a locking diopter and throw lever, along with SIG’s premium glass for a clear, sharp image. This scope represents a robust, feature-packed LPVO that bridges the gap between extreme high cost and proven performance.
Swampfox Optics Arrowhead 1-10×24 LPVO
Swampfox Optics offers an impressive and accessible entry into the 1-10x LPVO market with the Arrowhead. This scope provides tremendous versatility for the SCAR 17, allowing shooters to leverage a wide magnification range without a massive investment. The first focal plane reticle ensures your subtensions are correct regardless of the power setting.
It includes features often found on more expensive models, such as a daylight-bright illuminated reticle and a choice of reticle designs to suit different preferences. Built with a 34mm tube and robust construction, it is designed to handle the recoil of larger calibers. For the shooter seeking a high-magnification LPVO on a budget, the Arrowhead is a compelling option that performs well above its price point.
Buying Guide: What to Look For in an FN Scar 17 Scope
Choosing an optic for your FN Scar 17 isn’t like picking one for your average AR-15. This battle rifle is a different beast, and its unique characteristics demand careful consideration. I have field-tested a lot of glass on this platform, and here is what I have learned you absolutely need to think about before spending your money.
First and foremost is durability. The Scar 17 is a .308 caliber rifle with a robust, short-stroke gas piston system. It generates significant recoil impulse and shock waves that travel directly back into the optic mounted on the receiver. A scope that works fine on a bolt-action .308 might not survive 500 rounds on a Scar 17. You need an optic built to a proven, rugged standard. Look for models from manufacturers with a solid reputation for building scopes that can handle military-grade abuse. The internal components, especially the erector assembly and springs, must be engineered to withstand the repeated, sharp impacts.
Next is the reticle and magnification. What is your primary use for the rifle? If you see it as a close-quarters battle rifle or a general-purpose fighting rifle, a low-power variable optic (LPVO) in the 1-6x or 1-8x range is an incredibly versatile choice. It allows for fast, both-eyes-open shooting at 1x and precise shots out to several hundred yards. If your goal is to consistently hit man-sized targets at 600+ yards, then a traditional 3-9x or 3-18x scope is a better fit. I personally prefer illuminated reticles, especially for low-light scenarios or when shooting against a dark background. The reticle itself is a matter of personal preference, but first or second focal plane is a key decision. First focal plane reticles are great for long-range holdovers at any magnification, while second focal plane reticles are often cleaner and simpler for hunting or general use.
Finally, you cannot ignore the mount. This is one of the most common failure points. A cheap, lightweight mount will not last. The violent reciprocation of the Scar 17 will shake it loose, break the mounting screws, or worse. You need a high-quality, one-piece cantilever mount from a reputable company like American Defense Manufacturing, LaRue, or Spuhr. Ensure it is properly torqued to spec, and always use a thread-locking compound on the screws. A great scope in a bad mount is a recipe for frustration. Getting the right set of 8 best FN Scar 17 scopes & optics (2025 field tested) for your needs means pairing them with a mount that is just as tough.
FAQ
Why is the Scar 17 so hard on scopes?
The primary reason is its unique operating system. Unlike the direct impingement of an AR-10, the Scar 17 uses a short-stroke gas piston. This system is very reliable but creates a sharp, abrupt recoil impulse directly into the receiver. This high-frequency shockwave is exceptionally good at finding the weakest point in an optic’s internal construction, leading to things like reticle shift, loss of zero, or a completely dead scope. It is not just about the .308 recoil energy; it is the specific type
Do I really need a specific “SCAR-rated” mount?
While no one sells an officially “SCAR-rated” mount, the concept is very real. You need a mount that is overbuilt for the task. The combination of sharp recoil and the rifle’s weight slamming back creates immense stress. A quality mount from brands like American Defense Manufacturing (ADM), LaRue Tactical, or Geissele is considered essential. They use better materials, more robust clamping systems, and proper heat treatment to handle the abuse. Using a standard, budget-friendly mount is the fastest way to ruin a range day.
What magnification range is best for the Scar 17?
This depends entirely on your intended use. For a true do-it-all rifle, a 1-8x or 1-10x LPVO is hard to beat. It covers close-quarters speed and mid-to-long-range precision. If you are primarily shooting from a bench or hunting in open terrain, a 3-18x or 4-16x scope gives you more top-end magnification for precise shot placement. For a dedicated close-to-mid-range optic, a red dot with a 3x or 5x magnifier is also a fantastic and lightweight combination. After testing the latest 8 best FN Scar 17 scopes & optics (2025 field tested), I found the 1-8x LPVO to be the most versatile for the platform’s intended role.
Is an LPVO or a Prism scope better for the Scar 17?
Both are excellent, durable choices, but they serve slightly different needs. An LPVO gives you a true 1x for fast shooting and a variable magnification range for longer shots. A prism scope, like a 3x or 5x fixed-power model, is incredibly tough, often lighter, and has an etched reticle, meaning if the battery dies, you still have a usable reticle. The downside is the lack of variable magnification. If you need flexibility, go LPVO. If you want maximum durability for a specific engagement distance (e.g., 100-400 yards), a prism scope is a superb option.
How often should I check the torque on my scope mount?
This is critical. After initially mounting and zeroing your optic, you should re-check the torque on all mount screws after your first 50-100 rounds. The initial recoil can sometimes cause things to settle. After that, I make it a habit to check torque every 200-300 rounds or before any important shooting session. It takes two minutes with a quality torque wrench and can save you from a catastrophic failure or a lost zero. It is one of the most important maintenance routines for this specific rifle.