The Brownells BRN-4 10.4″ Stripped Barrel is machined by Faxon and engineered to fit early generations of HK 416 upper receivers and components. This medium profile barrel features a 1-7 twist, button rifled construction, and 1/2-28″ muzzle threads for your choice of muzzle device. The 5.56 NATO chambering accepts both 5.56x45mm NATO and .223 Remington cartridges.
A deep black nitride finish covers both exterior and interior surfaces, delivering hardness and easy maintenance. The longer barrel extension design pairs with the BRN-4 barrel nut for a secure upper receiver fit and straightforward installation. The medium profile contour reduces weight compared to the original, contributing to a well-balanced rifle without sacrificing strength.
Whether you’re building an HK 416 clone or assembling a high-quality piston-driven rifle system, this stripped barrel provides the precision engineering and durability Brownells is known for, establishing a reliable and accurate foundation for your build.
