Brownells BRN-4 5.56MM 16'' MED BBL COMPLETE UPPER W/13.5'' HANDGUARD BRN4-CU-16M

Brownells BRN-4 5.56mm 16" Complete Upper w/ 13.5" Handguard BRN4-CU-16M Brownells BRN-4 5.56MM 16'' Medium Barrel Complete Upper w/ 13.5'' Handguard BRN4-CU-16M The Brownells BRN-4 Complete Upper (BRN4-CU-16M) is a fully assembled, ready-to-install upper receiver designed for the Brownells BRN-4 platform. This complete upper comes with a 16-inch medium profile barrel and a 13.5-inch handguard, offering an optimal balance of velocity, accuracy, and accessory mounting space for general-purpose and tactical builds. Short-Stroke Piston Operating System The BRN-4 complete upper utilizes a reliable short-stroke piston system. This design keeps the action significantly cleaner by preventing carbon fouling from entering the receiver, resulting in improved reliability, reduced maintenance, and consistent performance even during high-volume shooting. 16-Inch Medium Barrel This upper features a 16-inch medium profile barrel chambered in 5.56mm. The 16-inch length provides excellent muzzle velocity and ballistic performance while the medium barrel profile offers a good balance between weight and heat dissipation, making it ideal for a versatile all-purpose rifle. 13.5-Inch Handguard The included 13.5-inch handguard provides generous rail space for mounting optics, lights, grips, bipods, and other accessories. Its length pairs well with the 16-inch barrel, offering excellent ergonomics and forward mounting options while maintaining a balanced overall rifle length. Key Features of the Brownells BRN-4 Complete Upper Complete assembled upper receiver 16-inch 5.56mm medium barrel 13.5-inch handguard included Short-stroke piston system Model Number: BRN4-CU-16M Common Applications BRN-4 and HK416-style builds General purpose and tactical rifles Competition and training use Users seeking a ready-to-install upper Modern sporting and defensive rifle configurations Benefits for BRN-4 Owners This complete upper offers a convenient, turnkey solution for building or upgrading a BRN-4 rifle. With the barrel and handguard already installed, it saves time and ensures proper fitment between components, delivering reliable performance right out of the box. Why Choose Brownells BRN Products? Brownells has developed the BRN-4 series to deliver reliable performance in the HK416 style. This complete upper reflects their commitment to producing high-quality, fully assembled components that meet the needs of serious shooters and professional users. Technical Specifications Brand: Brownells Model: BRN-4 Complete Upper Caliber: 5.56mm Barrel Length: 16 inches Barrel Profile: Medium Handguard Length: 13.5 inches Operating System: Short-Stroke Piston Part Number: BRN4-CU-16M BRN-4 16" Complete Upper with 13.5" Handguard The Brownells BRN-4 Complete Upper (BRN4-CU-16M) is a fully assembled piston-driven upper receiver featuring a 16-inch 5.56mm medium barrel and 13.5-inch handguard. Designed for the BRN-4 and HK416 platform, this complete upper delivers excellent reliability, reduced fouling, and balanced performance. Ideal for general-purpose, tactical, and competition builds, this ready-to-install upper provides a high-performance foundation for your BRN-4 rifle. The End