FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly

FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly

FN SCAR 20S / Mk20 SSR Barrel Assembly — 7.62x51mm NATO, 20″, Factory OEM

So your SCAR 20S needs a replacement barrel, or you’re converting a SCAR 17S upper to 20S precision configuration. The FN SCAR 20S Barrel Assembly: 7.62x51mm, 20″, 1:10 twist, with muzzle brake — factory original FN America production Hammer-forged, chrome-lined, fully free-floated. No RFD transfer required. Ships directly across the UK and Europe.

The FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly is the same specification as the Mk 20 SSR — the Sniper Support Rifle configuration adopted by USSOCOM for precision designated marksman roles. First, the 20″ length maximises velocity and sight radius compared to the standard SCAR 17S 16″ barrel. Next, the chrome-lined chamber and bore deliver precision fire at targets exceeding 1,000 yards. Finally, the factory muzzle brake ships pre-installed, ready for suppressor or other muzzle device mounting.

Available at eurogunandpartshub.com — for SCAR 20S and SCAR 17S owners across the UK and Europe.

Does This FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly Require RFD Transfer in the UK or Europe?

No — standalone barrel assembly, not a serialised component. So a barrel assembly is not a serialised firearm under UK or European law. Therefore, it ships directly to you without RFD transfer or import documentation in most European countries. However, your SCAR 17S or 20S receiver must already be legally owned under your country’s Section 1 FAC or equivalent European licensing before installation.

What Platforms Does This FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly Fit?

The FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly is designed for FNH SCAR 20S rifles chambered for 7.62x51mm. So the SCAR 20S uses the same upper receiver as the SCAR 17S — the barrel swap between 17S and 20S configurations is user-level with basic tools. Also, installing a 20″ barrel on a SCAR 17S upper converts it to the longer, precision-oriented 20S configuration. Therefore, SCAR 17S owners who want the 20S precision barrel length can achieve that with this assembly without sourcing a separate upper receiver.

What Is the Mk20 SSR Configuration?

The FN SCAR Mk.20 Mod.0 SSR Sniper Support Rifle  is chambered in 7.62×51 NATO with a 508mm (20″) FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly, overall length 1,028mm, and weight 5.05kg. So the Mk20 SSR is the military designated marksman rifle version of the SCAR-H, adopted by USSOCOM for precision support roles at distances exceeding standard battle rifle engagement ranges. Also, the SCAR 20S civilian variant is perfectly calibrated for long-range precision fire, giving shooters the ability to engage targets nearing 800 yards with ease. Therefore, this barrel assembly brings genuine military precision rifle specification to your SCAR platform.

What Makes Hammer-Forged Chrome-Lined Better?

FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly   Durability and consistent accuracy across thousands of rounds. So hammer forging compresses the steel grain structure during manufacture, creating a harder, more wear-resistant bore than cut or button-rifled alternatives. Also, chrome lining the bore adds corrosion resistance and extends service life significantly — particularly relevant for European hunters and shooters who store rifles in variable humidity conditions. Therefore, a hammer-forged chrome-lined SCAR barrel maintains its accuracy specification far longer than non-chrome alternatives at comparable price points.

Who Is This FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly Best For in the European Market?

This FN SCAR 20s 20 Mk20 SSR 308 Barrel Assembly  fits SCAR 17S and 20S owners across the UK, Czech Republic, Switzerland, and other European countries where these platforms are legally held, who want the precision 20″ configuration for long-range hunting or competition. So the SCAR 20S barrel at 20″ is specifically suited to European hunters who take shots at extended ranges — red deer stalking in Scotland, chamois in the Alps, or driven plains game in Eastern Europe where distances can be significant. Also, precision rifle competitors running SCAR platforms in PRS-style matches will find the 20″ barrel’s additional velocity and sight radius directly beneficial. Therefore, this is the correct replacement or upgrade barrel for any SCAR 7.62 owner focused on extended-range precision performance.

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FAQ

Find more FN SCAR barrel assemblies and precision rifle components at eurogunandpartshub.com.

No transfer documentation required. SCAR receiver ownership must comply with your country’s licensing requirements. All products sold in compliance with applicable UK and European firearms regulations. Euro Gun and Parts Hub — affiliated with BASC, GTA, and CIP.