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FN SCAR 16S 5.56 NATO
5.56 NATO • FN America

FN SCAR 16S 5.56 NATO

Model: 38-102016-100

30
CAPACITY
16.25"
BARREL
8.7
LBS
Short-stroke gas piston, semi-auto
ACTION
5.56 NATO
CALIBER
$3,799
MSRP

Full Specifications

Series FN SCAR Series
Action Type Short-stroke gas piston, semi-auto
Trigger Single-stage
Optic Ready Yes
Overall Length (Stock Extended) 37.25"
Barrel Length 16.25"
Weight 139.2 oz (8.7 lbs)
Barrel Finish Chrome-lined
Muzzle Device Compensator
Stock Material Polymer

Threaded barrel: compare 5.56 / .223 suppressor prices.

Includes: Vertical foregrip, piston removal tool, premium soft case with modular inserts

About This Firearm

The FN SCAR 16S is a short-stroke piston semi-automatic 5.56 NATO built for duty use, and this is the next-generation version FN lists as new for 2026 and coming soon. It has an MSRP of $3,799.00. Its bolt carrier is a hydraulically buffered two-piece unit, which FN fits for less felt recoil and faster follow-up shots, and which is backwards compatible with legacy SCAR rifles.

A vertical foregrip, a piston removal tool and a premium soft case with modular inserts come in the box. The stock telescopes and folds to the side and the cheekpiece adjusts. The charging handles are non-reciprocating and configurable for either side, the bolt catch and release are oversized and double sided, the magazine release buttons are elongated, and the selector levers swap into 24 combinations. The gas regulator has two positions. The grip takes ordinary AR grips, including beavertail shapes, and FN lists an AR buffer tube adapter as a coming accessory.

If you're cross-shopping, a Sig Sauer MCX Spear LT has an MSRP of $2,619.99, also folds and also runs an adjustable gas system, at 1.30 lbs lighter. An HK MR556A1 has an MSRP of $3,499 and is the other piston rifle at this money, 0.10 lbs under the SCAR, with no folding stock and no barrel swap. FN points the SCAR at low backpressure, forward-venting suppressors such as its own QD556.

Best For

GOOD
Range/Target
The receiver and the rail are one extended unit with M-LOK at 3, 6 and 9 o'clock, so an optic and accessories mount to the rifle and not to a handguard that comes off. FN states the design was tested to 16,000 rounds.
FAIR
Home Defense
The oversized ambidextrous bolt catch, the elongated magazine release and a charging handle that can sit on either side all help under pressure. At 8.7 lbs it is heavy for a house gun.
FAIR
Competition
The controls configure to the shooter and the stock folds for travel. Division rules and the weight decide whether it belongs on a stage.

Strengths & Limitations

Strengths
  • A receiver window with a heat shield gives access to the gas regulator and the piston, and the fasteners are Torx, so servicing the gas system needs one driver.
  • Barrels are user-changeable for a different length or caliber.
  • The barrel is cold hammer forged, chrome lined and free floating, with a compensator fitted.
Limitations
  • FN lists it as coming soon, so delivery and street pricing are not settled yet.
  • A piston system and a folding stock add weight, and at 8.7 lbs it is heavier than both rifles here.
  • Barrels, selector levers and charging handles are FN parts, so the configurable pieces come from one source even though the grip now takes AR hardware.

Compatible Ammunition

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Where to Buy

No prices available at this time.

Frequently Asked Questions

Is this the same SCAR 16S FN has been selling?

No. FN calls this version new for 2026 with more than 25 upgrades, among them the hydraulically buffered two-piece bolt carrier and the single-stage trigger it rebuilt for better control and feel.

What magazines does it take?

Steel-bodied magazines, which FN lists in a 30-round size and a reduced-capacity one.

Does it need a tax stamp?

No. The barrel is 16.25 inches, past the short-barreled rifle threshold, and the folding stock does not change that.