FN SCAR Buyer’s Guide 2026: 16S vs. 17S vs. 20S

Estimated reading time: 21 minutes

The FN SCAR has grown from the 5.56 rifle reviewed here into a full family spanning fast-handling carbines and 20-inch precision rifles. For 2026, the question is no longer whether the SCAR is interesting. It is whether the 16S, 17S, or 20S makes enough sense to justify one very serious swipe of the credit card.

Editor’s Note: We updated the original FN SCAR 16S review for 2026 to include the SCAR 17S and 20S, 6.5 Creedmoor options, current MSRP information, the latest generation of SCAR changes, a model comparison, and buying guidance. The original author’s test data and comments remain intact so readers can see both where the commercial SCAR started and where FN has taken it.

FN announced its next generation of commercial SCAR rifles in January 2026. The 16S, 17S, and 20S retain the unmistakable SCAR silhouette but receive more than two dozen updates, including a lighter, hydraulically buffered two-piece bolt carrier, revised triggers, extended receivers with M-LOK, fully ambidextrous controls, AR-pattern pistol-grip compatibility, and an updated gas system. FN also designed the new rifles around improved compatibility with forward-venting suppressors.

FN SCAR 16S vs. 17S vs. 20S: The 2026 Lineup

Back when this review was written, the commercial SCAR conversation centered heavily on the 16S and 17S. That is no longer enough. The SCAR 20S joined the commercial family in 2018, 6.5 Creedmoor reached the 20S in 2020, and the caliber later migrated into the 17S side of the family as well. For 2026, FN lists the 16S as its 5.56x45mm carbine, while the 17S and 20S are available in 7.62x51mm and 6.5 Creedmoor.

2026 Model	Primary Role	Current Caliber Options	Barrel	2026 MSRP
FN SCAR 16S	General-purpose carbine	5.56x45mm	16.25 inches	$3,799
FN SCAR 17S	Battle rifle / versatile heavy carbine	7.62x51mm, 6.5 Creedmoor	16.25 inches	$3,999
FN SCAR 20S	Precision / DMR-style rifle	7.62x51mm, 6.5 Creedmoor	20 inches	$4,499

The current MSRP spread is surprisingly narrow considering how different these rifles are in purpose. Published 2026 pricing lists the SCAR 16S at $3,799, the 17S at $3,999, and the 20S at $4,499. Actual dealer and GunsAmerica pricing can move around, so MSRP should be treated as the comparison baseline rather than a guaranteed checkout number.

FN SCAR 16S: The 5.56 Carbine for SCAR Purists

If what you want is the basic SCAR experience without feeding a larger cartridge, the 16S remains the logical doorway. It is the 5.56x45mm member of the rifle family and the closest civilian relative to the SCAR-L that started this whole story. The new generation keeps the 16.25-inch barrel but moves to FN’s redesigned hydraulic-buffer system, updated controls, extended M-LOK receiver, revised trigger, and more conventional accessory compatibility.

The buyer case for the 16S is straightforward. You want SCAR engineering, SCAR ergonomics, and SCAR cachet, but you prefer the lower recoil and ammunition economics of 5.56. It remains the easy answer for high-volume range use and anyone who wants the lighter-caliber end of the family. The awkward part is that $3,799 is still a heroic amount of money for a 5.56 semiautomatic rifle. Nobody ever accused the SCAR of competing in the bargain aisle.

FN SCAR 17S: The Battle Rifle Sweet Spot

The 17S is the rifle for the shooter who looks at the 16S and thinks the same basic idea would be more entertaining with a larger hole in the barrel. For 2026, the 17S is offered in 7.62x51mm and 6.5 Creedmoor, retains a 16.25-inch barrel, and carries a published MSRP of $3,999. The new generation also gets the same hydraulic-buffer concept and modernization found across the refreshed SCAR family.

For a lot of buyers, this is the most broadly useful SCAR. The 7.62 version carries considerably more cartridges than the 16S without turning the rifle into the long, heavy precision package that is the 20S. If your mental image of a SCAR involves a hard-hitting folding-stock battle rifle rather than a 5.56 carbine or a prone precision gun, the 17S is likely the one haunting your credit card.

FN SCAR 20S: The Long-Range Member of the Family

The SCAR 20S changes the mission. FN released the commercial precision rifle in 2018 with a 20-inch barrel, an extended receiver, an adjustable precision stock, and a two-stage trigger. It was closely inspired by the MK 20 SSR configuration and built to stretch the SCAR platform into precision-rifle territory.

The 2026 20S remains a 20-inch heavy-profile precision rifle and is offered in either 7.62x51mm or 6.5 Creedmoor. Current published specifications list a 10.7-pound weight and $4,499 MSRP, along with the precision-oriented stock and updated two-stage trigger.

This is not the SCAR I would choose if most of my shooting involved standing drills at conversational distance. It is the one I would choose if the point of buying a SCAR were magnified glass, a supported position, and making steel ring a very long way from the firing line. GunsAmerica has already taken the SCAR 20S into that world, and the platform has demonstrated exactly why FN stretched the receiver and barrel in the first place.

🛒 Check Current Price for FN SCAR 17S on GunsAmerica

FN SCAR in 6.5 Creedmoor: What Changed?

FN announced the SCAR 20S in 6.5 Creedmoor in January 2020. That rifle used a 20-inch barrel with a 1:8” right-hand twist, the same precision stock concept, and the two-stage Geissele Super SCAR trigger used in the 7.62 precision rifle of the period. FN listed its MSRP at $4,499.

The caliber did not stop there. FN released a limited-production SCAR 17S DMR in 6.5 Creedmoor in 2023, then announced 6.5 Creedmoor barrel assemblies for the 17S in 2024. With the 2026 redesign, 6.5 Creedmoor is part of the current 17S and 20S lineup rather than an interesting footnote tacked onto one precision model.

That gives buyers a clean philosophical split. The 7.62x51mm models preserve the classic heavy-SCAR identity and broad ammunition familiarity. The 6.5 Creedmoor versions make the most sense when efficient long-range performance is the priority. Put another way, if most of your targets are close enough to read the writing on them, the Creedmoor advantage is largely academic. If you routinely run out of magnification before you run out of range, it becomes much more interesting.

The Original FN SCAR Review: Where the Story Started

The HK416 that DevGru used to introduce Osama bin Laden to his seventy dark-eyed virgins was itself an evolutionary offshoot of the space-age weapon that Gene Stoner and a few others conjured up way back in 1958. While its ergonomics are unparalleled and its design undeniably inspired, the basic chassis is more than half a century old. Back in 1958, a telephone was tethered to the wall, weighed as much as a frying pan, and was nearly as large. Surely this deep into the Information Age we could do better.

About every twenty minutes, somebody in the US Army posts a list of specifications that drives the flower of modern engineering prowess into an apoplectic furor of frenetic gun design. The carrot that drives all this capitalistic chaos is the prestige and subsequent vast market share that opens up to the weapons company that supplies the guns that American grunts pack downrange. In addition to the obvious monetary benefits of a fat government production contract, everybody knows that the coolest kids on the block serve with the US Special Operations Command. If Uncle Sam’s Bad Boys are humping a particular smoke pole, then everybody else on the planet will want one just like it.

Most of these fishing expeditions don’t amount to much. Everybody gets tooled up for a while, but budget priorities change, somebody new moves into the White House, or we go to war someplace else, and the process starts anew. Such boondoggles brought us the XM8 assault rifle as well as the XM25 Counter Defilade Target Engagement System. These weapons were both undeniably awesome, but you can’t find one outside a museum nowadays. However, now and then something truly magical happens.

Sig’s new M17 Modular Handgun System made such a splash. Uncle Sam now wants more than 400,000 copies. Additionally, everybody’s aunt out here in the civilian world is waiting in line for one as well. A proper government arms contract can put a company firmly on the map. With this as an impetus in 2004, Fabrique Nationale rejoiced when their newest rifle system was selected as the new Special Operations Forces Combat Assault Rifle.

SCAR: The World’s Coolest Acronym

SCAR stands for Special Operations Forces Combat Assault Rifle.

It was decided soon after the turn of the century that our boys and girls in SOCOM needed something spiffier than a fifty-year-old M16 variant. They go places and do things that others don’t, so their requirements might be a bit more stringent than is the case for the rest of us mere mortals. After a competitive comparison wherein the baddest operators in the business did their dead level best to tear up everybody’s newest toys, the FN offering reigned supreme. The end result was indeed a spanking piece of iron.

Modularity is the new gospel in modern firepower, and the FN SCAR just drips with it. The upper receiver starts out as an extruded bit of aluminum, while the polymer lower contains the fire control system and secures the magazine. There are two major military subtypes. The SCAR-Light (SCAR-L) runs 5.56x45mm. The SCAR-Heavy (SCAR-H) chambers 7.62x51mm. There were rumors of conversions allowing these guns to fire 7.62x39mm and 6.8x43mm Remington, but these variants never really made it to prime time. The SCAR-H can also be fitted with a conversion kit allowing it to run smaller 5.56x45mm rounds. The SCAR-L cannot be scaled up, however.

Both versions run off of a gas tappet design similar to that of the M1 Carbine. This particular method of operation keeps all the crud up front in the weapon so the operating parts stay clean and cool. The bolt carrier is a fairly massive piece of kit, so the rifle has plenty of spare energy to keep the action running when it gets dirty. The barrels are chrome-lined, free-floated, and easily exchanged. This allows a single chassis to be used for long-range engagements, mid-range assault rifle chores, and close-range CQB missions. There’s that modularity again.

Starting at the nose, the original SCAR uses a proprietary muzzle brake/flash suppressor that looks like a Jackson Pollock painting but remains undeniably effective. The gas system of the SCAR is easily adjustable without tools. Top-quality backup iron sights fold when not needed yet deploy quickly for use when life goes truly sideways. The front sight is adjustable for zero, while the rear sight readily compensates for bullet drop. The gun sprouts enough Picatinny rail space to mount a tactical crockpot along with a modest pinball machine.

On the rifle tested for this original review, the charging handle is rigid and reciprocates with the action so it can be used as a forward assist device if needed. This appendage is easily reversible at the user level, but one needs to mind one’s fingers lest they get pinched when rushed. The magazine release is in the expected place on both sides of the rifle, while the bolt release runs exactly like that of an M4. You can drop the bolt just as easily by giving the charging handle a quick snatch to the rear.

Current FN commercial SCAR rifles use the newer generation of controls and operating components rather than the exact reciprocating arrangement reviewed here. The 2026 redesign also adds a hydraulically buffered two-piece bolt carrier and fully ambidextrous controls.

The safety/selector is bilateral and in the same spot as that of the M4. However, on the original rifle it only rotates through maybe 80 degrees. In this regard, it more closely resembles that of an HK G36. The SCAR-L is designed to feed from NATO-standard 5.56mm magazines. The SCAR-H uses proprietary FN magazines.

The real magic happens with the rear end of the rifle. The stock on the SCAR is as adjustable as your favorite recliner. Once you get it tweaked, the gun fits you like your most beloved pair of broken-in boxer shorts. In addition to a readily adjustable length of pull and comb height, the whole shebang pivots to the right for storage if need be. The rifle will still shoot fine with the stock folded, but nobody in his right mind would run it that way for real. By my count, there are six different sling attachment points. If you can’t find a handy place to hook a sling you are being too picky.

EOTech on the SCAR 16S: Tactical Glass That Still Works

I topped my SCAR with a new EOTech EXPS2 Holosight sporting a green reticle in concert with a flip-up magnifier. These two items are hardly cheap, but the last thing Osama bin Laden saw as he embarked for his well-earned eternal reward was the angry end of a Holosight. I can think of no higher accolade.

The perception of color is a billion-dollar industry. The good ladies in my medical clinic will order blue t-shirts calling them periwinkle and pink ones titled mauve. Out here in guy-world where I live such things are much simpler. Blue is just blue, while pink is simply pink. However, our eyes do typically get a lot more mileage out of green than red.

Take laser sights as an example. Both green and red laser sights may put out the same 500mw of power, yet the green sort is perceived as being much brighter. Green dots seem to throw much farther than red. In the case of the newest Holosight, the same cool laser-born holographic reticle seems to magically hover out over your target, but the green reticle is six times easier to see in daylight than is the red sort.

I have more than half a century on my eyes so I suffer from the inevitable age-related Presbyopia. This means I can see fine at a distance but need reading glasses up close. However, that weird Holosight reticle projected onto a little pane of indestructible glass two inches from my eyeball remains crystal clear just like my distant target. I have no idea how it works. Fairy dust maybe.

SCAR 16S Trigger Time: Why the Original Rifle Won Us Over

A tricked-out SCAR is an absolute dream on the range. The controls are all easily accessible, and once properly adjusted the buttstock fits me like a second skin. Recoil is a joke, and the gun stays flat and true at reasonable assault rifle ranges. The reciprocating charging handle on this original rifle takes a little getting used to, but it’s not a chore. Care must be exercised, however, not to pinch your fingers between the charging handle and the Holosight.

The gun is bulkier than your M4, though no heavier. The safety doesn’t seem quite so easy to re-engage, but I’ve been running an M16 since I was seventeen. Some things are tough to unlearn.

They say a direct gas impingement AR is more accurate, but that’s nuance at best. The SCAR shoots great as far as my eyes will allow. Anybody who splits those hairs is just a snob.

Particularly with a can in place, the gun is pleasantly front-heavy. This means doubles are fast and easy. Muzzle rise on semi-auto with the SCAR is not a real thing. After a proper afternoon turning ammo into noise, I find I must agree with SOCOM. The SCAR is the ultimate shooting machine.

From SOCOM to the Civilian SCAR Family

After a great deal of fanfare, USSOCOM bought enough SCAR-L rifles to outfit a Ranger Battalion and then sent them downrange with their best wishes. By all accounts, the weapons performed admirably, but, like a dog chasing a squirrel, Uncle Sam got distracted, ran out of money, and called the whole thing off. By 2013, all those lovely SCAR-L rifles had been pulled out of inventory and likely, knowing the government, ended up chopped up into beer cans or something comparably ignoble.

The SCAR-H still soldiers on with alacrity, albeit in markedly smaller numbers. A conversion kit indeed allows this rifle to run 5.56 ammo if desired, and the SCAR-H occupies the Designated Marksman Rifle role that had been filled by antiquated though updated M14 variants previously. Internet chatter claims that the Navy SEALs are still particularly fond of the gun. That is likely true. However, the Internet also tells me that Caitlyn Jenner is carrying the Loch Ness Monster’s baby and that the moon landings were faked on a soundstage in New Mexico. One mustn’t believe everything one reads.

FN is quick to point out that the SCAR got binned for budgetary reasons and not something more sinister. Nobody disputes that the SCAR is a better rifle than the M4. It is simply that Uncle Sam discovered more pressing places to spend our hard-earned cash. After a little trigger time on mine, I find myself quite taken with the gun as well.

The Original SCAR 16S Verdict, and What Changed Since

The FN SCAR 16S is the semi-auto civilian version of the SCAR-L. It’s an undeniably great rifle that is pretty crazy expensive. If you are in possession of a robust credit card, you can usually find a couple right here at GunsAmerica. I bought mine at a good price at a Sheriff’s auction of seized guns, of all places. The rifle is in fine condition, but I am intrigued by the story. How someone on the wrong side of the law ended up with such a rarefied combat rifle is thought-provoking, to say the least.

The SCAR rode its SOCOM cred to be adopted by twenty-seven different countries as well as LAPD SWAT. Belgium adopted the SCAR as their standard Infantry arm. Though our snake-eaters took a step back to their old M4 carbines, I suspect we will still see more of the SCAR in the future. The FN SCAR really is tomorrow’s high-end combat rifle.

2026 update: That final prediction aged pretty well. The American commercial family now includes the SCAR 16S, 17S, 20S, and 15P, while the 2026 rifle redesign represents the largest consumer-facing mechanical refresh of the platform in years. FN says the new 16S, 17S, and 20S incorporate more than two dozen changes while preserving the basic SCAR identity.

Which FN SCAR Should You Buy in 2026?

Buy the SCAR 16S if: you want the light-caliber SCAR experience, favor 5.56x45mm, expect to shoot higher round counts, and do not need the additional reach or authority of the heavy receiver family. It is the cleanest descendant of the SCAR-L idea and the least expensive new SCAR rifle, though “least expensive” remains a relative term at $3,799.

Buy the SCAR 17S if you want the quintessential civilian battle-rifle version of the platform. It gives you the compact 16.25-inch format with a choice of 7.62x51mm or 6.5 Creedmoor and lands only $200 above the 16S at published MSRP. For the buyer who can afford one SCAR and wants the model with the broadest personality, this is the sweet spot.

Buy the SCAR 20S if your SCAR is going to wear serious magnified glass and spend a meaningful portion of its life shooting from supported positions at distance. The 20-inch heavy barrel, precision stock, and two-stage trigger push it decisively toward the DMR and precision side of the spectrum. At $4,499, it costs only $500 more than the 17S, but it is a distinctly different animal.

Pick 7.62x51mm if you want the traditional SCAR-H flavor and broad familiarity of the cartridge.

Pick 6.5 Creedmoor if long-range efficiency is the priority and the rifle will spend more time stretching distance than living as a general-purpose battle rifle.

Our overall pick: For most buyers deliberately shopping the SCAR family rather than simply looking for a 5.56 rifle or a precision semiauto, the SCAR 17S makes the strongest case. It sits between the 16S and 20S in mission, delivers the heavy-SCAR experience people usually picture when they hear the name, and now offers both 7.62x51mm and 6.5 Creedmoor. The 16S remains the smarter choice for 5.56 devotees, while the 20S is the specialist’s rifle.

FN SCAR Pros & Cons in 2026

• Pros: Distinctive short-stroke gas-piston design, strong military lineage, multiple current calibers, user-changeable barrel architecture, highly adjustable stocks, 2026 hydraulic recoil buffering, extended M-LOK receivers, modernized controls, and separate carbine and precision configurations.
• Cons: Premium pricing remains brutal, the 20S is substantially heavier than the carbines, and buyers comparing the platform with mature AR-pattern rifles can get formidable performance for significantly less money.

Original FN SCAR 16S Technical Specifications

Historical note: The specifications below are preserved from the original SCAR 16S review. They describe the rifle tested at the time and should not be confused with FN’s redesigned 2026 SCAR 16S.

Model	FN SCAR 16S
Caliber	5.56x45mm
Operation	Short-stroke Gas Piston
Magazine Capacity	10/30
Weight	7.25 pounds
Barrel Length	16.25 inches
Overall Length	27.5 inches folded/37.5 inches extended
Barrel	Hammer-forged, Chrome-lined, Free-floated
Original MSRP	$3299

Original FN SCAR 16S Performance Results

Load	Group Size (inches)	Velocity (feet per second)
American Eagle 55gr FMJ	2.1	2969
American Eagle 50gr JHP	1.9	3194
HSM 55gr Sierra Blitzking	0.8	2976
SIG 60gr HT	1.5	2605

Group size is the best four of five shots measured center to center and fired from a simple rest at 100 meters. Velocity is the average of three shots fired across a Caldwell Ballistic Chronograph oriented ten feet from the muzzle.

Current FN SCAR Pricing at a Glance

Model	2026 MSRP
FN SCAR 16S	$3,799
FN SCAR 17S	$3,999
FN SCAR 20S	$4,499

Those figures reflect published MSRP for the new-generation lineup announced for 2026. Market pricing can vary.

Related Reads from GunsAmerica Digest

• New FN SCAR Lineup Crushes Recoil and Loves Suppressors
• FN SCAR 20S Updated and Now in 6.5 Creedmoor
• FN SCAR 17: The Quest for the Perfect Semi-Auto Battle Rifle