Quick Comparison — FN SCAR 16 vs SCAR 17
| Specification | FN SCAR 16S | FN SCAR 17S |
|---|---|---|
| Caliber | 5.56x45mm NATO (.223) | 7.62x51mm NATO (.308) |
| Gas System | Short-stroke gas piston | Short-stroke gas piston |
| Barrel Length | 16.25" | 16.25" |
| Weight (Unloaded) | 7.2 lbs | 8.0 lbs |
| Overall Length | 35.5" (extended) / 32.5" (collapsed) | 38.5" (extended) / 35.5" (collapsed) |
| Magazine Capacity | 30 rounds | 20 rounds |
| Effective Range | 500–600m | 600–800m |
| Muzzle Energy | ~1,300 ft-lbs | ~2,700 ft-lbs |
| Accuracy (100m) | 1–2 MOA | 0.75–1.5 MOA |
| Stock | Side-folding, adjustable | Side-folding, adjustable |
| MSRP (civilian) | $3,000 – $3,500 | $3,500 – $4,000 |
Who Is the SCAR 16 For?
The FN SCAR 16S is FN's 5.56mm offering in the SCAR family. It competes directly with high-end AR-15s from Daniel Defense, LMT, and HK at a significantly higher price point. The SCAR 16 offers the same excellent ergonomics as its big brother — the side-folding, adjustable stock is one of the best in the industry — but in a lighter, softer-shooting caliber. The SCAR 16 is for shooters who want the SCAR platform's piston reliability, folding stock versatility, and military pedigree but prefer the 5.56mm's lower ammunition cost, lower recoil, and higher magazine capacity.
Strengths of the SCAR 16
- Excellent Folding Stock: The SCAR's side-folding, adjustable stock is widely considered the best in the industry. It folds compact for storage and transport while maintaining a rock-solid cheek weld when deployed. The adjustable cheek riser and length of pull fit any shooter perfectly.
- Piston Reliability: The short-stroke gas piston keeps the action clean and reliable in adverse conditions. The SCAR runs suppressed or unsuppressed without adjustment.
- Free-Floating Accuracy: The monolithic upper receiver creates a true free-floating barrel that consistently delivers 1–2 MOA accuracy with quality ammunition.
- Full-Length Top Rail: The MIL-STD-1913 top rail accepts any optic without proprietary mounting plates.
Weaknesses of the SCAR 16
- Premium Price: At $3,000+, the SCAR 16 costs 2–3x a premium AR-15 and offers no meaningful advantage for most shooters. You are paying for the brand, the folding stock, and the military pedigree.
- Reciprocating Charging Handle: The charging handle moves with the bolt during firing. This can interfere with accessories mounted on the rail and is a safety hazard for shooters who keep their support hand near the receiver.
- Limited Aftermarket: The SCAR aftermarket is small compared to the AR-15. Handguards, triggers, and stocks are available but limited in variety.
- Proprietary Parts: SCAR barrels, bolts, and triggers are expensive and hard to find compared to mil-spec AR-15 parts.
Who Is the SCAR 17 For?
The FN SCAR 17S is the crown jewel of the SCAR family. Chambered in 7.62x51mm NATO (.308 Winchester), it delivers rifle-caliber energy at distances that 5.56mm cannot touch. The SCAR 17 is for shooters who want the ultimate semi-auto .308 battle rifle — accurate, reliable, portable, and folding. It is the rifle that won the SOCOM competition for a new 7.62mm battle rifle (designated the Mk 17) and has been used by special operations forces worldwide.
Strengths of the SCAR 17
- Powerful .308 Performance: The SCAR 17 delivers approximately 2,700 ft-lbs of muzzle energy — more than double the 5.56mm. Effective on medium and large game out to 800 meters, the SCAR 17 defeats barriers that stop 5.56mm cold.
- Exceptional Accuracy: The SCAR 17 is exceptionally accurate for a semi-auto .308. Many shooters report 0.75–1.5 MOA groups with match ammunition out of the box — precision-rifle territory in a battle rifle format.
- Manageable Recoil: The gas system and excellent stock design keep .308 recoil manageable. Recoil is noticeably softer than traditional .308 semi-autos like the M1A or FN FAL.
- Folding Stock for a .308: The SCAR 17 is one of the few full-power .308 rifles with a folding, adjustable stock. It is remarkably packable for a battle rifle.
Weaknesses of the SCAR 17
- High Cost: $3,500–4,000 for the base rifle. Magazines are $40–50 each. Spare parts are expensive. The SCAR 17 is a significant financial investment at every level.
- Ammunition Cost: .308/7.62 NATO ammunition costs roughly 2x 5.56mm. Training with the SCAR 17 costs twice as much per round as the SCAR 16.
- Weight: At 8.0 lbs unloaded, the SCAR 17 is light for a .308. But loaded with optics, suppressor, and a full magazine, it quickly reaches 11–12 lbs.
- Barrel Heat: The SCAR 17's barrel heats up quickly during sustained fire. After 60 rounds in 5 minutes, the barrel is hot enough to cause mirage in your optics.
MatchMyGun Verdict
If you want a premium 5.56mm carbine with a folding stock — get the SCAR 16, but know a $1,500 AR-15 gets you 90% of the way there.
If you want the best semi-auto .308 battle rifle money can buy — accurate, portable, and military-proven — buy the SCAR 17.
The SCAR 17 is the better value proposition because it occupies a unique niche. There is no other .308 semi-auto that matches its combination of accuracy, light weight, folding stock, and piston reliability at any price. The SCAR 16 competes in a crowded 5.56mm market where alternatives are abundant and considerably cheaper.
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