Brownells BRN-4 5.56x45 NATO 16in Heavy Chrome Lined Barrel Phosphate

Description

Product Overview

The Brownells BRN-4 16in heavy chrome lined barrel is an HK® 416 compatible replacement barrel machined by Faxon for early-generation fitment. Built for 5.56x45 NATO performance with a chrome lined bore and a 1-7 twist, this barrel supports common muzzle device setups with 1/2-28 threads while maintaining the BRN-4 system’s intended barrel and extension interface for straightforward installation with the BRN-4 barrel nut.

Key Features

• HK® 416 compatible BRN-4 platform barrel for early-generation upper receivers and components
• 16in heavy contour for increased rigidity and reduced barrel flex
• 5.56x45 NATO chamber with chrome lined bore for durability and easier cleaning
• 1-7 twist button rifling for versatile ammunition stabilization
• 1/2-28 muzzle threads for easy muzzle device mounting

Upgrade or rebuild your BRN-4 configuration with a factory-spec compatible barrel built for reliable fit and consistent 5.56x45 performance.