FN Barrel SCAR 16S Hammer Forged Barrel Assembly 1 in 7" Twist

The FN SCAR 16S hammer forged barrel assembly is a complete, ready-to-install upper barrel unit built to mil-spec standards for shooters upgrading or replacing their SCAR platform rifle. This assembly comes fully configured with front sight, gas block, gas regulator, gas piston, and flash hider—everything you need to swap onto your lower receiver without additional gunsmithing. The cold hammer-forged, chrome-lined steel barrel is built for durability and corrosion resistance, and the 1:7" twist rate stabilizes a wide range of 5.56 NATO projectiles for consistent accuracy whether you're running it at the range or in the field.

Installation is straightforward for anyone with basic tools: the assembly requires only a Torx T25 driver and a torque wrench set to 62 in-lbs to secure it properly. No headspacing work is needed—it's ready to shoot out of the box. If you're working with a short-barrel build for maneuverability in tight spaces, or need the velocity and range gains of a longer setup, FN offers this assembly in multiple lengths to match your mission.

This is genuine FN military-grade hardware, not a generic aftermarket barrel. Whether you're maintaining your SCAR, building a specialized configuration, or swapping to a fresh tube, this hammer-forged assembly delivers the precision and reliability FN is known for.

Key Features

• Cold hammer-forged, chrome-lined MIL-SPEC steel barrel
• Includes front sight assembly, gas block, gas regulator, gas piston, and flash hider
• 1:7" twist rate for consistent 5.56 NATO stabilization
• User-installable with standard tools (Torx T25, torque wrench)
• No headspacing required—ready to shoot
• Available in multiple barrel lengths for different applications

Specifications

Frequently Asked Questions

Is this barrel assembly ready to install on my SCAR 16S?

Yes. The assembly comes fully configured with all necessary components—sight, gas block, regulator, piston, and flash hider. You only need a Torx T25 driver and a torque wrench set to 62 in-lbs to install it. No additional gunsmithing or headspacing is required.

What does the 1:7" twist rate stabilize?

The 1:7" twist is designed for standard 5.56 NATO ammunition and provides consistent stabilization across typical commercial and military-grade rounds. It's suitable for both range shooting and field use.

What comes in the barrel assembly?

The assembly includes the barrel itself, front sight assembly, gas block assembly, gas regulator, gas piston, and flash hider. It is a complete upper unit ready to attach to your lower receiver.

What tools do I need to install this?

You'll need a Torx T25 screwdriver (or bit driver) and a torque wrench capable of measuring to 62 in-lbs. Standard gunsmithing tools; no specialized equipment is required.